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Finding the Fourth Proportional to 17,817.87, 26,719.02 and 8,460.57

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Solution

The fourth proportional to 17,817.87, 26,719.02 and 8,460.57 is: 12,687.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,817.87 : 26,719.02 = 8,460.57 : x
  2. Step 2: Convert to fraction form
    17,817.87/26,719.02 = 8,460.57/x
  3. Step 3: Cross multiply
    17,817.87x = 26,719.02 × 8,460.57
  4. Step 4: Simplify right side
    17,817.87x = 226,058,139.04
  5. Step 5: Solve for x
    x = 226,058,139.04/17,817.87
  6. Step 6: Final answer
    x = 12,687.16

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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.