Home / 12,292.94-18,432.12-5,720.60

Finding the Fourth Proportional to 12,292.94, 18,432.12 and 5,720.60

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Solution

The fourth proportional to 12,292.94, 18,432.12 and 5,720.60 is: 8,577.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,292.94 : 18,432.12 = 5,720.60 : x
  2. Step 2: Convert to fraction form
    12,292.94/18,432.12 = 5,720.60/x
  3. Step 3: Cross multiply
    12,292.94x = 18,432.12 × 5,720.60
  4. Step 4: Simplify right side
    12,292.94x = 105,442,785.67
  5. Step 5: Solve for x
    x = 105,442,785.67/12,292.94
  6. Step 6: Final answer
    x = 8,577.51

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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.