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Finding the Fourth Proportional to 8,894.57, 12,275.30 and 4,916.45

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Solution

The fourth proportional to 8,894.57, 12,275.30 and 4,916.45 is: 6,785.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,894.57 : 12,275.30 = 4,916.45 : x
  2. Step 2: Convert to fraction form
    8,894.57/12,275.30 = 4,916.45/x
  3. Step 3: Cross multiply
    8,894.57x = 12,275.30 × 4,916.45
  4. Step 4: Simplify right side
    8,894.57x = 60,350,812.73
  5. Step 5: Solve for x
    x = 60,350,812.73/8,894.57
  6. Step 6: Final answer
    x = 6,785.13

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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.