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Finding the Fourth Proportional to 15,214.40, 22,807.20 and 8,979.20

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Solution

The fourth proportional to 15,214.40, 22,807.20 and 8,979.20 is: 13,460.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,214.40 : 22,807.20 = 8,979.20 : x
  2. Step 2: Convert to fraction form
    15,214.40/22,807.20 = 8,979.20/x
  3. Step 3: Cross multiply
    15,214.40x = 22,807.20 × 8,979.20
  4. Step 4: Simplify right side
    15,214.40x = 204,790,410.24
  5. Step 5: Solve for x
    x = 204,790,410.24/15,214.40
  6. Step 6: Final answer
    x = 13,460.30

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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.