Home / 10,218.42-15,332.76-3,982.50

Finding the Fourth Proportional to 10,218.42, 15,332.76 and 3,982.50

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Solution

The fourth proportional to 10,218.42, 15,332.76 and 3,982.50 is: 5,975.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.42 : 15,332.76 = 3,982.50 : x
  2. Step 2: Convert to fraction form
    10,218.42/15,332.76 = 3,982.50/x
  3. Step 3: Cross multiply
    10,218.42x = 15,332.76 × 3,982.50
  4. Step 4: Simplify right side
    10,218.42x = 61,062,716.70
  5. Step 5: Solve for x
    x = 61,062,716.70/10,218.42
  6. Step 6: Final answer
    x = 5,975.75

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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.