Home / 8,742.71-13,117.30-4,065.23

Finding the Fourth Proportional to 8,742.71, 13,117.30 and 4,065.23

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Solution

The fourth proportional to 8,742.71, 13,117.30 and 4,065.23 is: 6,099.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.71 : 13,117.30 = 4,065.23 : x
  2. Step 2: Convert to fraction form
    8,742.71/13,117.30 = 4,065.23/x
  3. Step 3: Cross multiply
    8,742.71x = 13,117.30 × 4,065.23
  4. Step 4: Simplify right side
    8,742.71x = 53,324,841.48
  5. Step 5: Solve for x
    x = 53,324,841.48/8,742.71
  6. Step 6: Final answer
    x = 6,099.35

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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.