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Finding the Fourth Proportional to 17,128.92, 23,641.02 and 9,959.85

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Solution

The fourth proportional to 17,128.92, 23,641.02 and 9,959.85 is: 13,746.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,128.92 : 23,641.02 = 9,959.85 : x
  2. Step 2: Convert to fraction form
    17,128.92/23,641.02 = 9,959.85/x
  3. Step 3: Cross multiply
    17,128.92x = 23,641.02 × 9,959.85
  4. Step 4: Simplify right side
    17,128.92x = 235,461,013.05
  5. Step 5: Solve for x
    x = 235,461,013.05/17,128.92
  6. Step 6: Final answer
    x = 13,746.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.