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Finding the Fourth Proportional to 17,713.98, 26,580.06 and 12,171.78

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Solution

The fourth proportional to 17,713.98, 26,580.06 and 12,171.78 is: 18,263.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,713.98 : 26,580.06 = 12,171.78 : x
  2. Step 2: Convert to fraction form
    17,713.98/26,580.06 = 12,171.78/x
  3. Step 3: Cross multiply
    17,713.98x = 26,580.06 × 12,171.78
  4. Step 4: Simplify right side
    17,713.98x = 323,526,642.71
  5. Step 5: Solve for x
    x = 323,526,642.71/17,713.98
  6. Step 6: Final answer
    x = 18,263.92

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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.