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Finding the Fourth Proportional to 17,689.80, 26,534.70 and 10,302.60

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Solution

The fourth proportional to 17,689.80, 26,534.70 and 10,302.60 is: 15,453.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,689.80 : 26,534.70 = 10,302.60 : x
  2. Step 2: Convert to fraction form
    17,689.80/26,534.70 = 10,302.60/x
  3. Step 3: Cross multiply
    17,689.80x = 26,534.70 × 10,302.60
  4. Step 4: Simplify right side
    17,689.80x = 273,376,400.22
  5. Step 5: Solve for x
    x = 273,376,400.22/17,689.80
  6. Step 6: Final answer
    x = 15,453.90

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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.