Home / 13,631.46-20,436.15-4,860.90

Finding the Fourth Proportional to 13,631.46, 20,436.15 and 4,860.90

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Solution

The fourth proportional to 13,631.46, 20,436.15 and 4,860.90 is: 7,287.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.46 : 20,436.15 = 4,860.90 : x
  2. Step 2: Convert to fraction form
    13,631.46/20,436.15 = 4,860.90/x
  3. Step 3: Cross multiply
    13,631.46x = 20,436.15 × 4,860.90
  4. Step 4: Simplify right side
    13,631.46x = 99,338,081.54
  5. Step 5: Solve for x
    x = 99,338,081.54/13,631.46
  6. Step 6: Final answer
    x = 7,287.41

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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.