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Finding the Fourth Proportional to 17,382.61, 26,073.87 and 12,211.57

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Solution

The fourth proportional to 17,382.61, 26,073.87 and 12,211.57 is: 18,317.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,382.61 : 26,073.87 = 12,211.57 : x
  2. Step 2: Convert to fraction form
    17,382.61/26,073.87 = 12,211.57/x
  3. Step 3: Cross multiply
    17,382.61x = 26,073.87 × 12,211.57
  4. Step 4: Simplify right side
    17,382.61x = 318,402,888.68
  5. Step 5: Solve for x
    x = 318,402,888.68/17,382.61
  6. Step 6: Final answer
    x = 18,317.32

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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.