Home / 10,130.80-15,196.20-6,412.90

Finding the Fourth Proportional to 10,130.80, 15,196.20 and 6,412.90

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Solution

The fourth proportional to 10,130.80, 15,196.20 and 6,412.90 is: 9,619.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.80 : 15,196.20 = 6,412.90 : x
  2. Step 2: Convert to fraction form
    10,130.80/15,196.20 = 6,412.90/x
  3. Step 3: Cross multiply
    10,130.80x = 15,196.20 × 6,412.90
  4. Step 4: Simplify right side
    10,130.80x = 97,451,710.98
  5. Step 5: Solve for x
    x = 97,451,710.98/10,130.80
  6. Step 6: Final answer
    x = 9,619.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.