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Finding the Fourth Proportional to 15,001.88, 22,496.18 and 7,980.17

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Solution

The fourth proportional to 15,001.88, 22,496.18 and 7,980.17 is: 11,966.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001.88 : 22,496.18 = 7,980.17 : x
  2. Step 2: Convert to fraction form
    15,001.88/22,496.18 = 7,980.17/x
  3. Step 3: Cross multiply
    15,001.88x = 22,496.18 × 7,980.17
  4. Step 4: Simplify right side
    15,001.88x = 179,523,188.37
  5. Step 5: Solve for x
    x = 179,523,188.37/15,001.88
  6. Step 6: Final answer
    x = 11,966.72

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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.