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Finding the Fourth Proportional to 6,999.98, 10,448.75 and 6,169.62

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Solution

The fourth proportional to 6,999.98, 10,448.75 and 6,169.62 is: 9,209.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.98 : 10,448.75 = 6,169.62 : x
  2. Step 2: Convert to fraction form
    6,999.98/10,448.75 = 6,169.62/x
  3. Step 3: Cross multiply
    6,999.98x = 10,448.75 × 6,169.62
  4. Step 4: Simplify right side
    6,999.98x = 64,464,786.13
  5. Step 5: Solve for x
    x = 64,464,786.13/6,999.98
  6. Step 6: Final answer
    x = 9,209.28

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Half scale
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Double scale
Find fourth proportional to 7,000.98, 10,450.24 and 6,170.62
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.