Home / 10,223.79-15,320.46-5,286.84

Finding the Fourth Proportional to 10,223.79, 15,320.46 and 5,286.84

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Solution

The fourth proportional to 10,223.79, 15,320.46 and 5,286.84 is: 7,922.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,223.79 : 15,320.46 = 5,286.84 : x
  2. Step 2: Convert to fraction form
    10,223.79/15,320.46 = 5,286.84/x
  3. Step 3: Cross multiply
    10,223.79x = 15,320.46 × 5,286.84
  4. Step 4: Simplify right side
    10,223.79x = 80,996,820.75
  5. Step 5: Solve for x
    x = 80,996,820.75/10,223.79
  6. Step 6: Final answer
    x = 7,922.39

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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.