Home / 13,561.28-20,329.61-5,246.85

Finding the Fourth Proportional to 13,561.28, 20,329.61 and 5,246.85

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Solution

The fourth proportional to 13,561.28, 20,329.61 and 5,246.85 is: 7,865.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.28 : 20,329.61 = 5,246.85 : x
  2. Step 2: Convert to fraction form
    13,561.28/20,329.61 = 5,246.85/x
  3. Step 3: Cross multiply
    13,561.28x = 20,329.61 × 5,246.85
  4. Step 4: Simplify right side
    13,561.28x = 106,666,387.99
  5. Step 5: Solve for x
    x = 106,666,387.99/13,561.28
  6. Step 6: Final answer
    x = 7,865.51

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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.