Home / 13,246.96-18,281.08-7,279

Finding the Fourth Proportional to 13,246.96, 18,281.08 and 7,279

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Solution

The fourth proportional to 13,246.96, 18,281.08 and 7,279 is: 10,045.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.96 : 18,281.08 = 7,279 : x
  2. Step 2: Convert to fraction form
    13,246.96/18,281.08 = 7,279/x
  3. Step 3: Cross multiply
    13,246.96x = 18,281.08 × 7,279
  4. Step 4: Simplify right side
    13,246.96x = 133,067,981.32
  5. Step 5: Solve for x
    x = 133,067,981.32/13,246.96
  6. Step 6: Final answer
    x = 10,045.17

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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.