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Finding the Fourth Proportional to 15,921.65, 23,864.45 and 8,011.59

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Solution

The fourth proportional to 15,921.65, 23,864.45 and 8,011.59 is: 12,008.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,921.65 : 23,864.45 = 8,011.59 : x
  2. Step 2: Convert to fraction form
    15,921.65/23,864.45 = 8,011.59/x
  3. Step 3: Cross multiply
    15,921.65x = 23,864.45 × 8,011.59
  4. Step 4: Simplify right side
    15,921.65x = 191,192,148.92
  5. Step 5: Solve for x
    x = 191,192,148.92/15,921.65
  6. Step 6: Final answer
    x = 12,008.32

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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.