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Finding the Fourth Proportional to 8,334.47, 12,492.99 and 3,946.70

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Solution

The fourth proportional to 8,334.47, 12,492.99 and 3,946.70 is: 5,915.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,334.47 : 12,492.99 = 3,946.70 : x
  2. Step 2: Convert to fraction form
    8,334.47/12,492.99 = 3,946.70/x
  3. Step 3: Cross multiply
    8,334.47x = 12,492.99 × 3,946.70
  4. Step 4: Simplify right side
    8,334.47x = 49,306,021.17
  5. Step 5: Solve for x
    x = 49,306,021.17/8,334.47
  6. Step 6: Final answer
    x = 5,915.92

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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.