Home / 13,225.28-19,819.28-10,439.70

Finding the Fourth Proportional to 13,225.28, 19,819.28 and 10,439.70

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Solution

The fourth proportional to 13,225.28, 19,819.28 and 10,439.70 is: 15,644.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,225.28 : 19,819.28 = 10,439.70 : x
  2. Step 2: Convert to fraction form
    13,225.28/19,819.28 = 10,439.70/x
  3. Step 3: Cross multiply
    13,225.28x = 19,819.28 × 10,439.70
  4. Step 4: Simplify right side
    13,225.28x = 206,907,337.42
  5. Step 5: Solve for x
    x = 206,907,337.42/13,225.28
  6. Step 6: Final answer
    x = 15,644.84

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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.