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Finding the Fourth Proportional to 17,391, 26,088.34 and 5,545.68

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Solution

The fourth proportional to 17,391, 26,088.34 and 5,545.68 is: 8,319.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,391 : 26,088.34 = 5,545.68 : x
  2. Step 2: Convert to fraction form
    17,391/26,088.34 = 5,545.68/x
  3. Step 3: Cross multiply
    17,391x = 26,088.34 × 5,545.68
  4. Step 4: Simplify right side
    17,391x = 144,677,585.37
  5. Step 5: Solve for x
    x = 144,677,585.37/17,391
  6. Step 6: Final answer
    x = 8,319.11

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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.