Home / 13,478.79-20,217.23-5,043.69

Finding the Fourth Proportional to 13,478.79, 20,217.23 and 5,043.69

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Solution

The fourth proportional to 13,478.79, 20,217.23 and 5,043.69 is: 7,565.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478.79 : 20,217.23 = 5,043.69 : x
  2. Step 2: Convert to fraction form
    13,478.79/20,217.23 = 5,043.69/x
  3. Step 3: Cross multiply
    13,478.79x = 20,217.23 × 5,043.69
  4. Step 4: Simplify right side
    13,478.79x = 101,969,415.56
  5. Step 5: Solve for x
    x = 101,969,415.56/13,478.79
  6. Step 6: Final answer
    x = 7,565.18

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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.