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Finding the Fourth Proportional to 17,656.68, 26,489.63 and 10,254.78

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Solution

The fourth proportional to 17,656.68, 26,489.63 and 10,254.78 is: 15,384.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,656.68 : 26,489.63 = 10,254.78 : x
  2. Step 2: Convert to fraction form
    17,656.68/26,489.63 = 10,254.78/x
  3. Step 3: Cross multiply
    17,656.68x = 26,489.63 × 10,254.78
  4. Step 4: Simplify right side
    17,656.68x = 271,645,279.07
  5. Step 5: Solve for x
    x = 271,645,279.07/17,656.68
  6. Step 6: Final answer
    x = 15,384.84

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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.