Home / 9,863.60-13,611.85-5,387.27

Finding the Fourth Proportional to 9,863.60, 13,611.85 and 5,387.27

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Solution

The fourth proportional to 9,863.60, 13,611.85 and 5,387.27 is: 7,434.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,863.60 : 13,611.85 = 5,387.27 : x
  2. Step 2: Convert to fraction form
    9,863.60/13,611.85 = 5,387.27/x
  3. Step 3: Cross multiply
    9,863.60x = 13,611.85 × 5,387.27
  4. Step 4: Simplify right side
    9,863.60x = 73,330,684.21
  5. Step 5: Solve for x
    x = 73,330,684.21/9,863.60
  6. Step 6: Final answer
    x = 7,434.47

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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.