Home / 15,835.80-23,744.10-7,929.12

Finding the Fourth Proportional to 15,835.80, 23,744.10 and 7,929.12

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Solution

The fourth proportional to 15,835.80, 23,744.10 and 7,929.12 is: 11,888.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,835.80 : 23,744.10 = 7,929.12 : x
  2. Step 2: Convert to fraction form
    15,835.80/23,744.10 = 7,929.12/x
  3. Step 3: Cross multiply
    15,835.80x = 23,744.10 × 7,929.12
  4. Step 4: Simplify right side
    15,835.80x = 188,269,818.19
  5. Step 5: Solve for x
    x = 188,269,818.19/15,835.80
  6. Step 6: Final answer
    x = 11,888.87

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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.