Home / 11,230.36-15,490.20-6,514.72

Finding the Fourth Proportional to 11,230.36, 15,490.20 and 6,514.72

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Solution

The fourth proportional to 11,230.36, 15,490.20 and 6,514.72 is: 8,985.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,230.36 : 15,490.20 = 6,514.72 : x
  2. Step 2: Convert to fraction form
    11,230.36/15,490.20 = 6,514.72/x
  3. Step 3: Cross multiply
    11,230.36x = 15,490.20 × 6,514.72
  4. Step 4: Simplify right side
    11,230.36x = 100,914,315.74
  5. Step 5: Solve for x
    x = 100,914,315.74/11,230.36
  6. Step 6: Final answer
    x = 8,985.85

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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.