Home / 8,331.19-11,489.59-6,912.62

Finding the Fourth Proportional to 8,331.19, 11,489.59 and 6,912.62

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Solution

The fourth proportional to 8,331.19, 11,489.59 and 6,912.62 is: 9,533.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,331.19 : 11,489.59 = 6,912.62 : x
  2. Step 2: Convert to fraction form
    8,331.19/11,489.59 = 6,912.62/x
  3. Step 3: Cross multiply
    8,331.19x = 11,489.59 × 6,912.62
  4. Step 4: Simplify right side
    8,331.19x = 79,423,181.07
  5. Step 5: Solve for x
    x = 79,423,181.07/8,331.19
  6. Step 6: Final answer
    x = 9,533.24

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Half scale
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Double scale
Find fourth proportional to 8,332.19, 11,490.97 and 6,913.62
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.