Home / 8,122.17-12,182.45-5,506.47

Finding the Fourth Proportional to 8,122.17, 12,182.45 and 5,506.47

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Solution

The fourth proportional to 8,122.17, 12,182.45 and 5,506.47 is: 8,259.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.17 : 12,182.45 = 5,506.47 : x
  2. Step 2: Convert to fraction form
    8,122.17/12,182.45 = 5,506.47/x
  3. Step 3: Cross multiply
    8,122.17x = 12,182.45 × 5,506.47
  4. Step 4: Simplify right side
    8,122.17x = 67,082,267.92
  5. Step 5: Solve for x
    x = 67,082,267.92/8,122.17
  6. Step 6: Final answer
    x = 8,259.16

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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.