Home / 9,929.62-13,717.11-7,937.56

Finding the Fourth Proportional to 9,929.62, 13,717.11 and 7,937.56

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Solution

The fourth proportional to 9,929.62, 13,717.11 and 7,937.56 is: 10,965.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,929.62 : 13,717.11 = 7,937.56 : x
  2. Step 2: Convert to fraction form
    9,929.62/13,717.11 = 7,937.56/x
  3. Step 3: Cross multiply
    9,929.62x = 13,717.11 × 7,937.56
  4. Step 4: Simplify right side
    9,929.62x = 108,880,383.65
  5. Step 5: Solve for x
    x = 108,880,383.65/9,929.62
  6. Step 6: Final answer
    x = 10,965.21

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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.