Home / 10,885.04-15,021.06-6,169.76

Finding the Fourth Proportional to 10,885.04, 15,021.06 and 6,169.76

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Solution

The fourth proportional to 10,885.04, 15,021.06 and 6,169.76 is: 8,514.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,885.04 : 15,021.06 = 6,169.76 : x
  2. Step 2: Convert to fraction form
    10,885.04/15,021.06 = 6,169.76/x
  3. Step 3: Cross multiply
    10,885.04x = 15,021.06 × 6,169.76
  4. Step 4: Simplify right side
    10,885.04x = 92,676,335.15
  5. Step 5: Solve for x
    x = 92,676,335.15/10,885.04
  6. Step 6: Final answer
    x = 8,514.10

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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.