Home / 9,861.48-13,611.42-6,087.90

Finding the Fourth Proportional to 9,861.48, 13,611.42 and 6,087.90

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Solution

The fourth proportional to 9,861.48, 13,611.42 and 6,087.90 is: 8,402.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,861.48 : 13,611.42 = 6,087.90 : x
  2. Step 2: Convert to fraction form
    9,861.48/13,611.42 = 6,087.90/x
  3. Step 3: Cross multiply
    9,861.48x = 13,611.42 × 6,087.90
  4. Step 4: Simplify right side
    9,861.48x = 82,864,963.82
  5. Step 5: Solve for x
    x = 82,864,963.82/9,861.48
  6. Step 6: Final answer
    x = 8,402.89

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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.