Home / 13,296.38-18,348.18-7,327.72

Finding the Fourth Proportional to 13,296.38, 18,348.18 and 7,327.72

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Solution

The fourth proportional to 13,296.38, 18,348.18 and 7,327.72 is: 10,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,296.38 : 18,348.18 = 7,327.72 : x
  2. Step 2: Convert to fraction form
    13,296.38/18,348.18 = 7,327.72/x
  3. Step 3: Cross multiply
    13,296.38x = 18,348.18 × 7,327.72
  4. Step 4: Simplify right side
    13,296.38x = 134,450,325.55
  5. Step 5: Solve for x
    x = 134,450,325.55/13,296.38
  6. Step 6: Final answer
    x = 10,111.80

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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.