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Finding the Fourth Proportional to 10,401.67, 15,579.15 and 8,045.11

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Solution

The fourth proportional to 10,401.67, 15,579.15 and 8,045.11 is: 12,049.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,401.67 : 15,579.15 = 8,045.11 : x
  2. Step 2: Convert to fraction form
    10,401.67/15,579.15 = 8,045.11/x
  3. Step 3: Cross multiply
    10,401.67x = 15,579.15 × 8,045.11
  4. Step 4: Simplify right side
    10,401.67x = 125,335,975.46
  5. Step 5: Solve for x
    x = 125,335,975.46/10,401.67
  6. Step 6: Final answer
    x = 12,049.60

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1.5x scale

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.