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Finding the Fourth Proportional to 8,792.60, 12,139.45 and 7,846.77

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Solution

The fourth proportional to 8,792.60, 12,139.45 and 7,846.77 is: 10,833.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,792.60 : 12,139.45 = 7,846.77 : x
  2. Step 2: Convert to fraction form
    8,792.60/12,139.45 = 7,846.77/x
  3. Step 3: Cross multiply
    8,792.60x = 12,139.45 × 7,846.77
  4. Step 4: Simplify right side
    8,792.60x = 95,255,472.08
  5. Step 5: Solve for x
    x = 95,255,472.08/8,792.60
  6. Step 6: Final answer
    x = 10,833.60

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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.