Home / 13,221.10-18,246.27-7,253.92

Finding the Fourth Proportional to 13,221.10, 18,246.27 and 7,253.92

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Solution

The fourth proportional to 13,221.10, 18,246.27 and 7,253.92 is: 10,011.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,221.10 : 18,246.27 = 7,253.92 : x
  2. Step 2: Convert to fraction form
    13,221.10/18,246.27 = 7,253.92/x
  3. Step 3: Cross multiply
    13,221.10x = 18,246.27 × 7,253.92
  4. Step 4: Simplify right side
    13,221.10x = 132,356,982.88
  5. Step 5: Solve for x
    x = 132,356,982.88/13,221.10
  6. Step 6: Final answer
    x = 10,011.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.