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Finding the Fourth Proportional to 8,948.71, 12,350.35 and 5,411.94

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Solution

The fourth proportional to 8,948.71, 12,350.35 and 5,411.94 is: 7,469.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948.71 : 12,350.35 = 5,411.94 : x
  2. Step 2: Convert to fraction form
    8,948.71/12,350.35 = 5,411.94/x
  3. Step 3: Cross multiply
    8,948.71x = 12,350.35 × 5,411.94
  4. Step 4: Simplify right side
    8,948.71x = 66,839,353.18
  5. Step 5: Solve for x
    x = 66,839,353.18/8,948.71
  6. Step 6: Final answer
    x = 7,469.16

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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.