Home / 10,110.72-15,142.65-9,760.40

Finding the Fourth Proportional to 10,110.72, 15,142.65 and 9,760.40

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Solution

The fourth proportional to 10,110.72, 15,142.65 and 9,760.40 is: 14,617.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,110.72 : 15,142.65 = 9,760.40 : x
  2. Step 2: Convert to fraction form
    10,110.72/15,142.65 = 9,760.40/x
  3. Step 3: Cross multiply
    10,110.72x = 15,142.65 × 9,760.40
  4. Step 4: Simplify right side
    10,110.72x = 147,798,265.53
  5. Step 5: Solve for x
    x = 147,798,265.53/10,110.72
  6. Step 6: Final answer
    x = 14,617.97

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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.