Home / 10,885.74-15,021.48-6,170.34

Finding the Fourth Proportional to 10,885.74, 15,021.48 and 6,170.34

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Solution

The fourth proportional to 10,885.74, 15,021.48 and 6,170.34 is: 8,514.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,885.74 : 15,021.48 = 6,170.34 : x
  2. Step 2: Convert to fraction form
    10,885.74/15,021.48 = 6,170.34/x
  3. Step 3: Cross multiply
    10,885.74x = 15,021.48 × 6,170.34
  4. Step 4: Simplify right side
    10,885.74x = 92,687,638.90
  5. Step 5: Solve for x
    x = 92,687,638.90/10,885.74
  6. Step 6: Final answer
    x = 8,514.59

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Half scale
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Double scale
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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.