Home / 9,865.28-13,611.84-5,887.68

Finding the Fourth Proportional to 9,865.28, 13,611.84 and 5,887.68

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Solution

The fourth proportional to 9,865.28, 13,611.84 and 5,887.68 is: 8,123.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,865.28 : 13,611.84 = 5,887.68 : x
  2. Step 2: Convert to fraction form
    9,865.28/13,611.84 = 5,887.68/x
  3. Step 3: Cross multiply
    9,865.28x = 13,611.84 × 5,887.68
  4. Step 4: Simplify right side
    9,865.28x = 80,142,158.13
  5. Step 5: Solve for x
    x = 80,142,158.13/9,865.28
  6. Step 6: Final answer
    x = 8,123.66

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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.