Home / 13,458.46-20,187.71-6,436.82

Finding the Fourth Proportional to 13,458.46, 20,187.71 and 6,436.82

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Solution

The fourth proportional to 13,458.46, 20,187.71 and 6,436.82 is: 9,655.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.46 : 20,187.71 = 6,436.82 : x
  2. Step 2: Convert to fraction form
    13,458.46/20,187.71 = 6,436.82/x
  3. Step 3: Cross multiply
    13,458.46x = 20,187.71 × 6,436.82
  4. Step 4: Simplify right side
    13,458.46x = 129,944,655.48
  5. Step 5: Solve for x
    x = 129,944,655.48/13,458.46
  6. Step 6: Final answer
    x = 9,655.24

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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.