Home / 10,438.20-15,660.54-9,335.52

Finding the Fourth Proportional to 10,438.20, 15,660.54 and 9,335.52

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Solution

The fourth proportional to 10,438.20, 15,660.54 and 9,335.52 is: 14,006.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,438.20 : 15,660.54 = 9,335.52 : x
  2. Step 2: Convert to fraction form
    10,438.20/15,660.54 = 9,335.52/x
  3. Step 3: Cross multiply
    10,438.20x = 15,660.54 × 9,335.52
  4. Step 4: Simplify right side
    10,438.20x = 146,199,284.38
  5. Step 5: Solve for x
    x = 146,199,284.38/10,438.20
  6. Step 6: Final answer
    x = 14,006.18

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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.