Home / 13,458.56-20,169.32-6,870.92

Finding the Fourth Proportional to 13,458.56, 20,169.32 and 6,870.92

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Solution

The fourth proportional to 13,458.56, 20,169.32 and 6,870.92 is: 10,296.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.56 : 20,169.32 = 6,870.92 : x
  2. Step 2: Convert to fraction form
    13,458.56/20,169.32 = 6,870.92/x
  3. Step 3: Cross multiply
    13,458.56x = 20,169.32 × 6,870.92
  4. Step 4: Simplify right side
    13,458.56x = 138,581,648.97
  5. Step 5: Solve for x
    x = 138,581,648.97/13,458.56
  6. Step 6: Final answer
    x = 10,296.92

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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.