Home / 8,520.08-12,753.36-5,389.22

Finding the Fourth Proportional to 8,520.08, 12,753.36 and 5,389.22

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Solution

The fourth proportional to 8,520.08, 12,753.36 and 5,389.22 is: 8,066.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.08 : 12,753.36 = 5,389.22 : x
  2. Step 2: Convert to fraction form
    8,520.08/12,753.36 = 5,389.22/x
  3. Step 3: Cross multiply
    8,520.08x = 12,753.36 × 5,389.22
  4. Step 4: Simplify right side
    8,520.08x = 68,730,599.01
  5. Step 5: Solve for x
    x = 68,730,599.01/8,520.08
  6. Step 6: Final answer
    x = 8,066.90

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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.