Home / 10,320.32-15,504.60-9,760.88

Finding the Fourth Proportional to 10,320.32, 15,504.60 and 9,760.88

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Solution

The fourth proportional to 10,320.32, 15,504.60 and 9,760.88 is: 14,664.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,320.32 : 15,504.60 = 9,760.88 : x
  2. Step 2: Convert to fraction form
    10,320.32/15,504.60 = 9,760.88/x
  3. Step 3: Cross multiply
    10,320.32x = 15,504.60 × 9,760.88
  4. Step 4: Simplify right side
    10,320.32x = 151,338,540.05
  5. Step 5: Solve for x
    x = 151,338,540.05/10,320.32
  6. Step 6: Final answer
    x = 14,664.13

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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.