Home / 13,403.70-20,082.76-8,716.55

Finding the Fourth Proportional to 13,403.70, 20,082.76 and 8,716.55

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Solution

The fourth proportional to 13,403.70, 20,082.76 and 8,716.55 is: 13,060.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.70 : 20,082.76 = 8,716.55 : x
  2. Step 2: Convert to fraction form
    13,403.70/20,082.76 = 8,716.55/x
  3. Step 3: Cross multiply
    13,403.70x = 20,082.76 × 8,716.55
  4. Step 4: Simplify right side
    13,403.70x = 175,052,259.47
  5. Step 5: Solve for x
    x = 175,052,259.47/13,403.70
  6. Step 6: Final answer
    x = 13,060.00

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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.