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Finding the Fourth Proportional to 12,591.32, 17,373.84 and 7,285.82

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Solution

The fourth proportional to 12,591.32, 17,373.84 and 7,285.82 is: 10,053.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591.32 : 17,373.84 = 7,285.82 : x
  2. Step 2: Convert to fraction form
    12,591.32/17,373.84 = 7,285.82/x
  3. Step 3: Cross multiply
    12,591.32x = 17,373.84 × 7,285.82
  4. Step 4: Simplify right side
    12,591.32x = 126,582,670.95
  5. Step 5: Solve for x
    x = 126,582,670.95/12,591.32
  6. Step 6: Final answer
    x = 10,053.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.