Home / 13,359.32-20,035.72-7,113.68

Finding the Fourth Proportional to 13,359.32, 20,035.72 and 7,113.68

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Solution

The fourth proportional to 13,359.32, 20,035.72 and 7,113.68 is: 10,668.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.32 : 20,035.72 = 7,113.68 : x
  2. Step 2: Convert to fraction form
    13,359.32/20,035.72 = 7,113.68/x
  3. Step 3: Cross multiply
    13,359.32x = 20,035.72 × 7,113.68
  4. Step 4: Simplify right side
    13,359.32x = 142,527,700.65
  5. Step 5: Solve for x
    x = 142,527,700.65/13,359.32
  6. Step 6: Final answer
    x = 10,668.78

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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.