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Finding the Fourth Proportional to 17,952.88, 26,930.40 and 5,640.88

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Solution

The fourth proportional to 17,952.88, 26,930.40 and 5,640.88 is: 8,461.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,952.88 : 26,930.40 = 5,640.88 : x
  2. Step 2: Convert to fraction form
    17,952.88/26,930.40 = 5,640.88/x
  3. Step 3: Cross multiply
    17,952.88x = 26,930.40 × 5,640.88
  4. Step 4: Simplify right side
    17,952.88x = 151,911,154.75
  5. Step 5: Solve for x
    x = 151,911,154.75/17,952.88
  6. Step 6: Final answer
    x = 8,461.66

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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.