Home / 11,272.20-16,900.20-6,343.35

Finding the Fourth Proportional to 11,272.20, 16,900.20 and 6,343.35

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Solution

The fourth proportional to 11,272.20, 16,900.20 and 6,343.35 is: 9,510.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,272.20 : 16,900.20 = 6,343.35 : x
  2. Step 2: Convert to fraction form
    11,272.20/16,900.20 = 6,343.35/x
  3. Step 3: Cross multiply
    11,272.20x = 16,900.20 × 6,343.35
  4. Step 4: Simplify right side
    11,272.20x = 107,203,883.67
  5. Step 5: Solve for x
    x = 107,203,883.67/11,272.20
  6. Step 6: Final answer
    x = 9,510.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.