Home / 10,114.80-15,179.28-4,191.81

Finding the Fourth Proportional to 10,114.80, 15,179.28 and 4,191.81

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Solution

The fourth proportional to 10,114.80, 15,179.28 and 4,191.81 is: 6,290.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,114.80 : 15,179.28 = 4,191.81 : x
  2. Step 2: Convert to fraction form
    10,114.80/15,179.28 = 4,191.81/x
  3. Step 3: Cross multiply
    10,114.80x = 15,179.28 × 4,191.81
  4. Step 4: Simplify right side
    10,114.80x = 63,628,657.70
  5. Step 5: Solve for x
    x = 63,628,657.70/10,114.80
  6. Step 6: Final answer
    x = 6,290.65

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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.