Home / 13,216.20-18,237.45-7,246.63

Finding the Fourth Proportional to 13,216.20, 18,237.45 and 7,246.63

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Solution

The fourth proportional to 13,216.20, 18,237.45 and 7,246.63 is: 9,999.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.20 : 18,237.45 = 7,246.63 : x
  2. Step 2: Convert to fraction form
    13,216.20/18,237.45 = 7,246.63/x
  3. Step 3: Cross multiply
    13,216.20x = 18,237.45 × 7,246.63
  4. Step 4: Simplify right side
    13,216.20x = 132,160,052.29
  5. Step 5: Solve for x
    x = 132,160,052.29/13,216.20
  6. Step 6: Final answer
    x = 9,999.85

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Similar ratio
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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.