Home / 13,237.05-18,272.88-8,752.89

Finding the Fourth Proportional to 13,237.05, 18,272.88 and 8,752.89

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Solution

The fourth proportional to 13,237.05, 18,272.88 and 8,752.89 is: 12,082.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,237.05 : 18,272.88 = 8,752.89 : x
  2. Step 2: Convert to fraction form
    13,237.05/18,272.88 = 8,752.89/x
  3. Step 3: Cross multiply
    13,237.05x = 18,272.88 × 8,752.89
  4. Step 4: Simplify right side
    13,237.05x = 159,940,508.62
  5. Step 5: Solve for x
    x = 159,940,508.62/13,237.05
  6. Step 6: Final answer
    x = 12,082.79

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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.