Home / 9,201.20-13,785.60-7,548.80

Finding the Fourth Proportional to 9,201.20, 13,785.60 and 7,548.80

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Solution

The fourth proportional to 9,201.20, 13,785.60 and 7,548.80 is: 11,309.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,201.20 : 13,785.60 = 7,548.80 : x
  2. Step 2: Convert to fraction form
    9,201.20/13,785.60 = 7,548.80/x
  3. Step 3: Cross multiply
    9,201.20x = 13,785.60 × 7,548.80
  4. Step 4: Simplify right side
    9,201.20x = 104,064,737.28
  5. Step 5: Solve for x
    x = 104,064,737.28/9,201.20
  6. Step 6: Final answer
    x = 11,309.91

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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.