Home / 10,239.20-15,358.99-3,219.08

Finding the Fourth Proportional to 10,239.20, 15,358.99 and 3,219.08

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Solution

The fourth proportional to 10,239.20, 15,358.99 and 3,219.08 is: 4,828.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,239.20 : 15,358.99 = 3,219.08 : x
  2. Step 2: Convert to fraction form
    10,239.20/15,358.99 = 3,219.08/x
  3. Step 3: Cross multiply
    10,239.20x = 15,358.99 × 3,219.08
  4. Step 4: Simplify right side
    10,239.20x = 49,441,817.53
  5. Step 5: Solve for x
    x = 49,441,817.53/10,239.20
  6. Step 6: Final answer
    x = 4,828.68

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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.