Home / 14,231.12-21,316.92-11,442.72

Finding the Fourth Proportional to 14,231.12, 21,316.92 and 11,442.72

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Solution

The fourth proportional to 14,231.12, 21,316.92 and 11,442.72 is: 17,140.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,231.12 : 21,316.92 = 11,442.72 : x
  2. Step 2: Convert to fraction form
    14,231.12/21,316.92 = 11,442.72/x
  3. Step 3: Cross multiply
    14,231.12x = 21,316.92 × 11,442.72
  4. Step 4: Simplify right side
    14,231.12x = 243,923,546.82
  5. Step 5: Solve for x
    x = 243,923,546.82/14,231.12
  6. Step 6: Final answer
    x = 17,140.15

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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.