Home / 13,697.18-20,539.38-4,930.95

Finding the Fourth Proportional to 13,697.18, 20,539.38 and 4,930.95

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Solution

The fourth proportional to 13,697.18, 20,539.38 and 4,930.95 is: 7,394.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,697.18 : 20,539.38 = 4,930.95 : x
  2. Step 2: Convert to fraction form
    13,697.18/20,539.38 = 4,930.95/x
  3. Step 3: Cross multiply
    13,697.18x = 20,539.38 × 4,930.95
  4. Step 4: Simplify right side
    13,697.18x = 101,278,655.81
  5. Step 5: Solve for x
    x = 101,278,655.81/13,697.18
  6. Step 6: Final answer
    x = 7,394.13

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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.