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Finding the Fourth Proportional to 15,011.52, 22,510.59 and 7,990.03

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Solution

The fourth proportional to 15,011.52, 22,510.59 and 7,990.03 is: 11,981.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,011.52 : 22,510.59 = 7,990.03 : x
  2. Step 2: Convert to fraction form
    15,011.52/22,510.59 = 7,990.03/x
  3. Step 3: Cross multiply
    15,011.52x = 22,510.59 × 7,990.03
  4. Step 4: Simplify right side
    15,011.52x = 179,860,289.42
  5. Step 5: Solve for x
    x = 179,860,289.42/15,011.52
  6. Step 6: Final answer
    x = 11,981.48

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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.