Home / 8,540.18-12,813.30-4,154.70

Finding the Fourth Proportional to 8,540.18, 12,813.30 and 4,154.70

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Solution

The fourth proportional to 8,540.18, 12,813.30 and 4,154.70 is: 6,233.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.18 : 12,813.30 = 4,154.70 : x
  2. Step 2: Convert to fraction form
    8,540.18/12,813.30 = 4,154.70/x
  3. Step 3: Cross multiply
    8,540.18x = 12,813.30 × 4,154.70
  4. Step 4: Simplify right side
    8,540.18x = 53,235,417.51
  5. Step 5: Solve for x
    x = 53,235,417.51/8,540.18
  6. Step 6: Final answer
    x = 6,233.53

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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.