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Finding the Fourth Proportional to 17,812.88, 26,740.02 and 10,422.64

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Solution

The fourth proportional to 17,812.88, 26,740.02 and 10,422.64 is: 15,646.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,812.88 : 26,740.02 = 10,422.64 : x
  2. Step 2: Convert to fraction form
    17,812.88/26,740.02 = 10,422.64/x
  3. Step 3: Cross multiply
    17,812.88x = 26,740.02 × 10,422.64
  4. Step 4: Simplify right side
    17,812.88x = 278,701,602.05
  5. Step 5: Solve for x
    x = 278,701,602.05/17,812.88
  6. Step 6: Final answer
    x = 15,646.07

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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.