Home / 10,478.38-14,483.28-9,209.92

Finding the Fourth Proportional to 10,478.38, 14,483.28 and 9,209.92

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Solution

The fourth proportional to 10,478.38, 14,483.28 and 9,209.92 is: 12,730.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,478.38 : 14,483.28 = 9,209.92 : x
  2. Step 2: Convert to fraction form
    10,478.38/14,483.28 = 9,209.92/x
  3. Step 3: Cross multiply
    10,478.38x = 14,483.28 × 9,209.92
  4. Step 4: Simplify right side
    10,478.38x = 133,389,850.14
  5. Step 5: Solve for x
    x = 133,389,850.14/10,478.38
  6. Step 6: Final answer
    x = 12,730.01

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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.