Home / 15,077.32-22,629.84-7,687

Finding the Fourth Proportional to 15,077.32, 22,629.84 and 7,687

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Solution

The fourth proportional to 15,077.32, 22,629.84 and 7,687 is: 11,537.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,077.32 : 22,629.84 = 7,687 : x
  2. Step 2: Convert to fraction form
    15,077.32/22,629.84 = 7,687/x
  3. Step 3: Cross multiply
    15,077.32x = 22,629.84 × 7,687
  4. Step 4: Simplify right side
    15,077.32x = 173,955,580.08
  5. Step 5: Solve for x
    x = 173,955,580.08/15,077.32
  6. Step 6: Final answer
    x = 11,537.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.