Home / 15,342.03-21,170.79-8,626.38

Finding the Fourth Proportional to 15,342.03, 21,170.79 and 8,626.38

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Solution

The fourth proportional to 15,342.03, 21,170.79 and 8,626.38 is: 11,903.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,342.03 : 21,170.79 = 8,626.38 : x
  2. Step 2: Convert to fraction form
    15,342.03/21,170.79 = 8,626.38/x
  3. Step 3: Cross multiply
    15,342.03x = 21,170.79 × 8,626.38
  4. Step 4: Simplify right side
    15,342.03x = 182,627,279.44
  5. Step 5: Solve for x
    x = 182,627,279.44/15,342.03
  6. Step 6: Final answer
    x = 11,903.72

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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.