Home / 13,221.46-18,245.01-7,253.00

Finding the Fourth Proportional to 13,221.46, 18,245.01 and 7,253.00

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Solution

The fourth proportional to 13,221.46, 18,245.01 and 7,253.00 is: 10,008.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,221.46 : 18,245.01 = 7,253.00 : x
  2. Step 2: Convert to fraction form
    13,221.46/18,245.01 = 7,253.00/x
  3. Step 3: Cross multiply
    13,221.46x = 18,245.01 × 7,253.00
  4. Step 4: Simplify right side
    13,221.46x = 132,331,044.15
  5. Step 5: Solve for x
    x = 132,331,044.15/13,221.46
  6. Step 6: Final answer
    x = 10,008.81

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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.