Home / 11,238.85-15,514.58-7,261.90

Finding the Fourth Proportional to 11,238.85, 15,514.58 and 7,261.90

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Solution

The fourth proportional to 11,238.85, 15,514.58 and 7,261.90 is: 10,024.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,238.85 : 15,514.58 = 7,261.90 : x
  2. Step 2: Convert to fraction form
    11,238.85/15,514.58 = 7,261.90/x
  3. Step 3: Cross multiply
    11,238.85x = 15,514.58 × 7,261.90
  4. Step 4: Simplify right side
    11,238.85x = 112,665,328.50
  5. Step 5: Solve for x
    x = 112,665,328.50/11,238.85
  6. Step 6: Final answer
    x = 10,024.63

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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.