Home / 11,117.44-15,342.78-6,401.62

Finding the Fourth Proportional to 11,117.44, 15,342.78 and 6,401.62

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Solution

The fourth proportional to 11,117.44, 15,342.78 and 6,401.62 is: 8,834.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.44 : 15,342.78 = 6,401.62 : x
  2. Step 2: Convert to fraction form
    11,117.44/15,342.78 = 6,401.62/x
  3. Step 3: Cross multiply
    11,117.44x = 15,342.78 × 6,401.62
  4. Step 4: Simplify right side
    11,117.44x = 98,218,647.30
  5. Step 5: Solve for x
    x = 98,218,647.30/11,117.44
  6. Step 6: Final answer
    x = 8,834.65

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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.