Home / 9,180.73-12,669.11-5,403.02

Finding the Fourth Proportional to 9,180.73, 12,669.11 and 5,403.02

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Solution

The fourth proportional to 9,180.73, 12,669.11 and 5,403.02 is: 7,455.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180.73 : 12,669.11 = 5,403.02 : x
  2. Step 2: Convert to fraction form
    9,180.73/12,669.11 = 5,403.02/x
  3. Step 3: Cross multiply
    9,180.73x = 12,669.11 × 5,403.02
  4. Step 4: Simplify right side
    9,180.73x = 68,451,454.71
  5. Step 5: Solve for x
    x = 68,451,454.71/9,180.73
  6. Step 6: Final answer
    x = 7,455.99

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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.