Home / 9,087.40-13,631.10-5,790.70

Finding the Fourth Proportional to 9,087.40, 13,631.10 and 5,790.70

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Solution

The fourth proportional to 9,087.40, 13,631.10 and 5,790.70 is: 8,686.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,087.40 : 13,631.10 = 5,790.70 : x
  2. Step 2: Convert to fraction form
    9,087.40/13,631.10 = 5,790.70/x
  3. Step 3: Cross multiply
    9,087.40x = 13,631.10 × 5,790.70
  4. Step 4: Simplify right side
    9,087.40x = 78,933,610.77
  5. Step 5: Solve for x
    x = 78,933,610.77/9,087.40
  6. Step 6: Final answer
    x = 8,686.05

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Similar ratio
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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.