Home / 13,516.76-20,246.89-10,869.95

Finding the Fourth Proportional to 13,516.76, 20,246.89 and 10,869.95

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Solution

The fourth proportional to 13,516.76, 20,246.89 and 10,869.95 is: 16,282.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.76 : 20,246.89 = 10,869.95 : x
  2. Step 2: Convert to fraction form
    13,516.76/20,246.89 = 10,869.95/x
  3. Step 3: Cross multiply
    13,516.76x = 20,246.89 × 10,869.95
  4. Step 4: Simplify right side
    13,516.76x = 220,082,681.96
  5. Step 5: Solve for x
    x = 220,082,681.96/13,516.76
  6. Step 6: Final answer
    x = 16,282.21

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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.