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Finding the Fourth Proportional to 8,946.09, 13,306.50 and 8,916.12

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Solution

The fourth proportional to 8,946.09, 13,306.50 and 8,916.12 is: 13,261.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,946.09 : 13,306.50 = 8,916.12 : x
  2. Step 2: Convert to fraction form
    8,946.09/13,306.50 = 8,916.12/x
  3. Step 3: Cross multiply
    8,946.09x = 13,306.50 × 8,916.12
  4. Step 4: Simplify right side
    8,946.09x = 118,642,350.78
  5. Step 5: Solve for x
    x = 118,642,350.78/8,946.09
  6. Step 6: Final answer
    x = 13,261.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.