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Finding the Fourth Proportional to 15,004.32, 22,472.64 and 7,218.96

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Solution

The fourth proportional to 15,004.32, 22,472.64 and 7,218.96 is: 10,812.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004.32 : 22,472.64 = 7,218.96 : x
  2. Step 2: Convert to fraction form
    15,004.32/22,472.64 = 7,218.96/x
  3. Step 3: Cross multiply
    15,004.32x = 22,472.64 × 7,218.96
  4. Step 4: Simplify right side
    15,004.32x = 162,229,089.25
  5. Step 5: Solve for x
    x = 162,229,089.25/15,004.32
  6. Step 6: Final answer
    x = 10,812.16

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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.