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Finding the Fourth Proportional to 13,151.52, 19,717.52 and 7,956.16

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Solution

The fourth proportional to 13,151.52, 19,717.52 and 7,956.16 is: 11,928.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151.52 : 19,717.52 = 7,956.16 : x
  2. Step 2: Convert to fraction form
    13,151.52/19,717.52 = 7,956.16/x
  3. Step 3: Cross multiply
    13,151.52x = 19,717.52 × 7,956.16
  4. Step 4: Simplify right side
    13,151.52x = 156,875,743.92
  5. Step 5: Solve for x
    x = 156,875,743.92/13,151.52
  6. Step 6: Final answer
    x = 11,928.34

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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.