Home / 10,405.20-14,349.56-7,052.88

Finding the Fourth Proportional to 10,405.20, 14,349.56 and 7,052.88

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Solution

The fourth proportional to 10,405.20, 14,349.56 and 7,052.88 is: 9,726.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,405.20 : 14,349.56 = 7,052.88 : x
  2. Step 2: Convert to fraction form
    10,405.20/14,349.56 = 7,052.88/x
  3. Step 3: Cross multiply
    10,405.20x = 14,349.56 × 7,052.88
  4. Step 4: Simplify right side
    10,405.20x = 101,205,689.47
  5. Step 5: Solve for x
    x = 101,205,689.47/10,405.20
  6. Step 6: Final answer
    x = 9,726.45

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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.