Home / 11,108.24-15,339.48-10,440.80

Finding the Fourth Proportional to 11,108.24, 15,339.48 and 10,440.80

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Solution

The fourth proportional to 11,108.24, 15,339.48 and 10,440.80 is: 14,417.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,108.24 : 15,339.48 = 10,440.80 : x
  2. Step 2: Convert to fraction form
    11,108.24/15,339.48 = 10,440.80/x
  3. Step 3: Cross multiply
    11,108.24x = 15,339.48 × 10,440.80
  4. Step 4: Simplify right side
    11,108.24x = 160,156,442.78
  5. Step 5: Solve for x
    x = 160,156,442.78/11,108.24
  6. Step 6: Final answer
    x = 14,417.81

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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.