Home / 13,080.28-19,614.12-4,311.76

Finding the Fourth Proportional to 13,080.28, 19,614.12 and 4,311.76

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Solution

The fourth proportional to 13,080.28, 19,614.12 and 4,311.76 is: 6,465.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.28 : 19,614.12 = 4,311.76 : x
  2. Step 2: Convert to fraction form
    13,080.28/19,614.12 = 4,311.76/x
  3. Step 3: Cross multiply
    13,080.28x = 19,614.12 × 4,311.76
  4. Step 4: Simplify right side
    13,080.28x = 84,571,378.05
  5. Step 5: Solve for x
    x = 84,571,378.05/13,080.28
  6. Step 6: Final answer
    x = 6,465.56

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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.