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Finding the Fourth Proportional to 12,659.39, 17,470.02 and 6,916.93

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Solution

The fourth proportional to 12,659.39, 17,470.02 and 6,916.93 is: 9,545.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659.39 : 17,470.02 = 6,916.93 : x
  2. Step 2: Convert to fraction form
    12,659.39/17,470.02 = 6,916.93/x
  3. Step 3: Cross multiply
    12,659.39x = 17,470.02 × 6,916.93
  4. Step 4: Simplify right side
    12,659.39x = 120,838,905.44
  5. Step 5: Solve for x
    x = 120,838,905.44/12,659.39
  6. Step 6: Final answer
    x = 9,545.40

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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.