Home / 10,041.30-15,002.55-9,696.78

Finding the Fourth Proportional to 10,041.30, 15,002.55 and 9,696.78

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Solution

The fourth proportional to 10,041.30, 15,002.55 and 9,696.78 is: 14,487.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,041.30 : 15,002.55 = 9,696.78 : x
  2. Step 2: Convert to fraction form
    10,041.30/15,002.55 = 9,696.78/x
  3. Step 3: Cross multiply
    10,041.30x = 15,002.55 × 9,696.78
  4. Step 4: Simplify right side
    10,041.30x = 145,476,426.79
  5. Step 5: Solve for x
    x = 145,476,426.79/10,041.30
  6. Step 6: Final answer
    x = 14,487.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.