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Finding the Fourth Proportional to 15,411.92, 23,117.87 and 9,867.87

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Solution

The fourth proportional to 15,411.92, 23,117.87 and 9,867.87 is: 14,801.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411.92 : 23,117.87 = 9,867.87 : x
  2. Step 2: Convert to fraction form
    15,411.92/23,117.87 = 9,867.87/x
  3. Step 3: Cross multiply
    15,411.92x = 23,117.87 × 9,867.87
  4. Step 4: Simplify right side
    15,411.92x = 228,124,160.51
  5. Step 5: Solve for x
    x = 228,124,160.51/15,411.92
  6. Step 6: Final answer
    x = 14,801.81

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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.