Home / 17,618.64-26,376.70-13,711.20

Finding the Fourth Proportional to 17,618.64, 26,376.70 and 13,711.20

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Solution

The fourth proportional to 17,618.64, 26,376.70 and 13,711.20 is: 20,526.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,618.64 : 26,376.70 = 13,711.20 : x
  2. Step 2: Convert to fraction form
    17,618.64/26,376.70 = 13,711.20/x
  3. Step 3: Cross multiply
    17,618.64x = 26,376.70 × 13,711.20
  4. Step 4: Simplify right side
    17,618.64x = 361,656,209.04
  5. Step 5: Solve for x
    x = 361,656,209.04/17,618.64
  6. Step 6: Final answer
    x = 20,526.91

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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.