Home / 15,110.34-20,853.36-8,398.14

Finding the Fourth Proportional to 15,110.34, 20,853.36 and 8,398.14

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Solution

The fourth proportional to 15,110.34, 20,853.36 and 8,398.14 is: 11,590.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,110.34 : 20,853.36 = 8,398.14 : x
  2. Step 2: Convert to fraction form
    15,110.34/20,853.36 = 8,398.14/x
  3. Step 3: Cross multiply
    15,110.34x = 20,853.36 × 8,398.14
  4. Step 4: Simplify right side
    15,110.34x = 175,129,436.75
  5. Step 5: Solve for x
    x = 175,129,436.75/15,110.34
  6. Step 6: Final answer
    x = 11,590.04

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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.