Home / 11,291-15,581.10-6,255.20

Finding the Fourth Proportional to 11,291, 15,581.10 and 6,255.20

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Solution

The fourth proportional to 11,291, 15,581.10 and 6,255.20 is: 8,631.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,291 : 15,581.10 = 6,255.20 : x
  2. Step 2: Convert to fraction form
    11,291/15,581.10 = 6,255.20/x
  3. Step 3: Cross multiply
    11,291x = 15,581.10 × 6,255.20
  4. Step 4: Simplify right side
    11,291x = 97,462,896.72
  5. Step 5: Solve for x
    x = 97,462,896.72/11,291
  6. Step 6: Final answer
    x = 8,631.91

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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.