Home / 13,689.23-20,518.05-6,184.69

Finding the Fourth Proportional to 13,689.23, 20,518.05 and 6,184.69

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Solution

The fourth proportional to 13,689.23, 20,518.05 and 6,184.69 is: 9,269.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,689.23 : 20,518.05 = 6,184.69 : x
  2. Step 2: Convert to fraction form
    13,689.23/20,518.05 = 6,184.69/x
  3. Step 3: Cross multiply
    13,689.23x = 20,518.05 × 6,184.69
  4. Step 4: Simplify right side
    13,689.23x = 126,897,750.55
  5. Step 5: Solve for x
    x = 126,897,750.55/13,689.23
  6. Step 6: Final answer
    x = 9,269.90

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1.5x scale

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.