Home / 11,401.36-15,736.88-8,045.20

Finding the Fourth Proportional to 11,401.36, 15,736.88 and 8,045.20

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Solution

The fourth proportional to 11,401.36, 15,736.88 and 8,045.20 is: 11,104.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,401.36 : 15,736.88 = 8,045.20 : x
  2. Step 2: Convert to fraction form
    11,401.36/15,736.88 = 8,045.20/x
  3. Step 3: Cross multiply
    11,401.36x = 15,736.88 × 8,045.20
  4. Step 4: Simplify right side
    11,401.36x = 126,606,346.98
  5. Step 5: Solve for x
    x = 126,606,346.98/11,401.36
  6. Step 6: Final answer
    x = 11,104.50

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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.