Home / 9,104.55-12,559.77-5,561.61

Finding the Fourth Proportional to 9,104.55, 12,559.77 and 5,561.61

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Solution

The fourth proportional to 9,104.55, 12,559.77 and 5,561.61 is: 7,672.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,104.55 : 12,559.77 = 5,561.61 : x
  2. Step 2: Convert to fraction form
    9,104.55/12,559.77 = 5,561.61/x
  3. Step 3: Cross multiply
    9,104.55x = 12,559.77 × 5,561.61
  4. Step 4: Simplify right side
    9,104.55x = 69,852,542.43
  5. Step 5: Solve for x
    x = 69,852,542.43/9,104.55
  6. Step 6: Final answer
    x = 7,672.27

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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.