Home / 8,088.24-12,132.90-3,158.40

Finding the Fourth Proportional to 8,088.24, 12,132.90 and 3,158.40

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Solution

The fourth proportional to 8,088.24, 12,132.90 and 3,158.40 is: 4,737.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,088.24 : 12,132.90 = 3,158.40 : x
  2. Step 2: Convert to fraction form
    8,088.24/12,132.90 = 3,158.40/x
  3. Step 3: Cross multiply
    8,088.24x = 12,132.90 × 3,158.40
  4. Step 4: Simplify right side
    8,088.24x = 38,320,551.36
  5. Step 5: Solve for x
    x = 38,320,551.36/8,088.24
  6. Step 6: Final answer
    x = 4,737.81

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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.