Home / 13,384.20-20,076.61-4,499.65

Finding the Fourth Proportional to 13,384.20, 20,076.61 and 4,499.65

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Solution

The fourth proportional to 13,384.20, 20,076.61 and 4,499.65 is: 6,749.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,384.20 : 20,076.61 = 4,499.65 : x
  2. Step 2: Convert to fraction form
    13,384.20/20,076.61 = 4,499.65/x
  3. Step 3: Cross multiply
    13,384.20x = 20,076.61 × 4,499.65
  4. Step 4: Simplify right side
    13,384.20x = 90,337,718.19
  5. Step 5: Solve for x
    x = 90,337,718.19/13,384.20
  6. Step 6: Final answer
    x = 6,749.58

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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.