Home / 9,929.25-13,708.79-6,156.44

Finding the Fourth Proportional to 9,929.25, 13,708.79 and 6,156.44

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Solution

The fourth proportional to 9,929.25, 13,708.79 and 6,156.44 is: 8,499.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,929.25 : 13,708.79 = 6,156.44 : x
  2. Step 2: Convert to fraction form
    9,929.25/13,708.79 = 6,156.44/x
  3. Step 3: Cross multiply
    9,929.25x = 13,708.79 × 6,156.44
  4. Step 4: Simplify right side
    9,929.25x = 84,397,289.95
  5. Step 5: Solve for x
    x = 84,397,289.95/9,929.25
  6. Step 6: Final answer
    x = 8,499.87

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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.