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Finding the Fourth Proportional to 8,541.86, 12,807.48 and 2,995.76

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Solution

The fourth proportional to 8,541.86, 12,807.48 and 2,995.76 is: 4,491.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,541.86 : 12,807.48 = 2,995.76 : x
  2. Step 2: Convert to fraction form
    8,541.86/12,807.48 = 2,995.76/x
  3. Step 3: Cross multiply
    8,541.86x = 12,807.48 × 2,995.76
  4. Step 4: Simplify right side
    8,541.86x = 38,368,136.28
  5. Step 5: Solve for x
    x = 38,368,136.28/8,541.86
  6. Step 6: Final answer
    x = 4,491.78

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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.