Home / 10,179.87-15,269.08-3,159.71

Finding the Fourth Proportional to 10,179.87, 15,269.08 and 3,159.71

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Solution

The fourth proportional to 10,179.87, 15,269.08 and 3,159.71 is: 4,739.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,179.87 : 15,269.08 = 3,159.71 : x
  2. Step 2: Convert to fraction form
    10,179.87/15,269.08 = 3,159.71/x
  3. Step 3: Cross multiply
    10,179.87x = 15,269.08 × 3,159.71
  4. Step 4: Simplify right side
    10,179.87x = 48,245,895.04
  5. Step 5: Solve for x
    x = 48,245,895.04/10,179.87
  6. Step 6: Final answer
    x = 4,739.34

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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.