Home / 11,631.65-17,440.84-7,938.35

Finding the Fourth Proportional to 11,631.65, 17,440.84 and 7,938.35

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Solution

The fourth proportional to 11,631.65, 17,440.84 and 7,938.35 is: 11,902.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,631.65 : 17,440.84 = 7,938.35 : x
  2. Step 2: Convert to fraction form
    11,631.65/17,440.84 = 7,938.35/x
  3. Step 3: Cross multiply
    11,631.65x = 17,440.84 × 7,938.35
  4. Step 4: Simplify right side
    11,631.65x = 138,451,385.16
  5. Step 5: Solve for x
    x = 138,451,385.16/11,631.65
  6. Step 6: Final answer
    x = 11,902.99

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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.