Home / 9,091.45-12,541.99-5,314.78

Finding the Fourth Proportional to 9,091.45, 12,541.99 and 5,314.78

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Solution

The fourth proportional to 9,091.45, 12,541.99 and 5,314.78 is: 7,331.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,091.45 : 12,541.99 = 5,314.78 : x
  2. Step 2: Convert to fraction form
    9,091.45/12,541.99 = 5,314.78/x
  3. Step 3: Cross multiply
    9,091.45x = 12,541.99 × 5,314.78
  4. Step 4: Simplify right side
    9,091.45x = 66,657,917.61
  5. Step 5: Solve for x
    x = 66,657,917.61/9,091.45
  6. Step 6: Final answer
    x = 7,331.93

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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.