Home / 10,613.20-14,641.68-6,627.40

Finding the Fourth Proportional to 10,613.20, 14,641.68 and 6,627.40

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Solution

The fourth proportional to 10,613.20, 14,641.68 and 6,627.40 is: 9,142.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,613.20 : 14,641.68 = 6,627.40 : x
  2. Step 2: Convert to fraction form
    10,613.20/14,641.68 = 6,627.40/x
  3. Step 3: Cross multiply
    10,613.20x = 14,641.68 × 6,627.40
  4. Step 4: Simplify right side
    10,613.20x = 97,036,270.03
  5. Step 5: Solve for x
    x = 97,036,270.03/10,613.20
  6. Step 6: Final answer
    x = 9,142.98

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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.