Home / 13,452.12-18,572.04-8,423.82

Finding the Fourth Proportional to 13,452.12, 18,572.04 and 8,423.82

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Solution

The fourth proportional to 13,452.12, 18,572.04 and 8,423.82 is: 11,629.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,452.12 : 18,572.04 = 8,423.82 : x
  2. Step 2: Convert to fraction form
    13,452.12/18,572.04 = 8,423.82/x
  3. Step 3: Cross multiply
    13,452.12x = 18,572.04 × 8,423.82
  4. Step 4: Simplify right side
    13,452.12x = 156,447,521.99
  5. Step 5: Solve for x
    x = 156,447,521.99/13,452.12
  6. Step 6: Final answer
    x = 11,629.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.