Home / 10,979.20-16,501.20-9,553.60

Finding the Fourth Proportional to 10,979.20, 16,501.20 and 9,553.60

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Solution

The fourth proportional to 10,979.20, 16,501.20 and 9,553.60 is: 14,358.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.20 : 16,501.20 = 9,553.60 : x
  2. Step 2: Convert to fraction form
    10,979.20/16,501.20 = 9,553.60/x
  3. Step 3: Cross multiply
    10,979.20x = 16,501.20 × 9,553.60
  4. Step 4: Simplify right side
    10,979.20x = 157,645,864.32
  5. Step 5: Solve for x
    x = 157,645,864.32/10,979.20
  6. Step 6: Final answer
    x = 14,358.59

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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.