Home / 8,371.28-12,561.24-4,671.20

Finding the Fourth Proportional to 8,371.28, 12,561.24 and 4,671.20

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Solution

The fourth proportional to 8,371.28, 12,561.24 and 4,671.20 is: 7,009.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.28 : 12,561.24 = 4,671.20 : x
  2. Step 2: Convert to fraction form
    8,371.28/12,561.24 = 4,671.20/x
  3. Step 3: Cross multiply
    8,371.28x = 12,561.24 × 4,671.20
  4. Step 4: Simplify right side
    8,371.28x = 58,676,064.29
  5. Step 5: Solve for x
    x = 58,676,064.29/8,371.28
  6. Step 6: Final answer
    x = 7,009.21

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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.