Home / 10,223.53-15,320.09-5,286.58

Finding the Fourth Proportional to 10,223.53, 15,320.09 and 5,286.58

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Solution

The fourth proportional to 10,223.53, 15,320.09 and 5,286.58 is: 7,922.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,223.53 : 15,320.09 = 5,286.58 : x
  2. Step 2: Convert to fraction form
    10,223.53/15,320.09 = 5,286.58/x
  3. Step 3: Cross multiply
    10,223.53x = 15,320.09 × 5,286.58
  4. Step 4: Simplify right side
    10,223.53x = 80,990,856.31
  5. Step 5: Solve for x
    x = 80,990,856.31/10,223.53
  6. Step 6: Final answer
    x = 7,922.01

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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.