Home / 8,742.64-13,114.44-2,587.12

Finding the Fourth Proportional to 8,742.64, 13,114.44 and 2,587.12

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Solution

The fourth proportional to 8,742.64, 13,114.44 and 2,587.12 is: 3,880.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.64 : 13,114.44 = 2,587.12 : x
  2. Step 2: Convert to fraction form
    8,742.64/13,114.44 = 2,587.12/x
  3. Step 3: Cross multiply
    8,742.64x = 13,114.44 × 2,587.12
  4. Step 4: Simplify right side
    8,742.64x = 33,928,630.01
  5. Step 5: Solve for x
    x = 33,928,630.01/8,742.64
  6. Step 6: Final answer
    x = 3,880.82

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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.