Home / 10,624.24-15,921.78-5,419.18

Finding the Fourth Proportional to 10,624.24, 15,921.78 and 5,419.18

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Solution

The fourth proportional to 10,624.24, 15,921.78 and 5,419.18 is: 8,121.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,624.24 : 15,921.78 = 5,419.18 : x
  2. Step 2: Convert to fraction form
    10,624.24/15,921.78 = 5,419.18/x
  3. Step 3: Cross multiply
    10,624.24x = 15,921.78 × 5,419.18
  4. Step 4: Simplify right side
    10,624.24x = 86,282,991.74
  5. Step 5: Solve for x
    x = 86,282,991.74/10,624.24
  6. Step 6: Final answer
    x = 8,121.33

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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.