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Finding the Fourth Proportional to 17,960.76, 24,760.13 and 12,639.06

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Solution

The fourth proportional to 17,960.76, 24,760.13 and 12,639.06 is: 17,423.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,960.76 : 24,760.13 = 12,639.06 : x
  2. Step 2: Convert to fraction form
    17,960.76/24,760.13 = 12,639.06/x
  3. Step 3: Cross multiply
    17,960.76x = 24,760.13 × 12,639.06
  4. Step 4: Simplify right side
    17,960.76x = 312,944,705.48
  5. Step 5: Solve for x
    x = 312,944,705.48/17,960.76
  6. Step 6: Final answer
    x = 17,423.80

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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.