Home / 10,613.19-15,938.27-9,778.70

Finding the Fourth Proportional to 10,613.19, 15,938.27 and 9,778.70

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Solution

The fourth proportional to 10,613.19, 15,938.27 and 9,778.70 is: 14,685.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,613.19 : 15,938.27 = 9,778.70 : x
  2. Step 2: Convert to fraction form
    10,613.19/15,938.27 = 9,778.70/x
  3. Step 3: Cross multiply
    10,613.19x = 15,938.27 × 9,778.70
  4. Step 4: Simplify right side
    10,613.19x = 155,855,432.26
  5. Step 5: Solve for x
    x = 155,855,432.26/10,613.19
  6. Step 6: Final answer
    x = 14,685.07

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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.