Home / 9,863.66-13,611.63-5,387.43

Finding the Fourth Proportional to 9,863.66, 13,611.63 and 5,387.43

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Solution

The fourth proportional to 9,863.66, 13,611.63 and 5,387.43 is: 7,434.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,863.66 : 13,611.63 = 5,387.43 : x
  2. Step 2: Convert to fraction form
    9,863.66/13,611.63 = 5,387.43/x
  3. Step 3: Cross multiply
    9,863.66x = 13,611.63 × 5,387.43
  4. Step 4: Simplify right side
    9,863.66x = 73,331,652.77
  5. Step 5: Solve for x
    x = 73,331,652.77/9,863.66
  6. Step 6: Final answer
    x = 7,434.53

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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.