Home / 7,949.76-11,925.18-2,106.18

Finding the Fourth Proportional to 7,949.76, 11,925.18 and 2,106.18

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Solution

The fourth proportional to 7,949.76, 11,925.18 and 2,106.18 is: 3,159.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,949.76 : 11,925.18 = 2,106.18 : x
  2. Step 2: Convert to fraction form
    7,949.76/11,925.18 = 2,106.18/x
  3. Step 3: Cross multiply
    7,949.76x = 11,925.18 × 2,106.18
  4. Step 4: Simplify right side
    7,949.76x = 25,116,575.61
  5. Step 5: Solve for x
    x = 25,116,575.61/7,949.76
  6. Step 6: Final answer
    x = 3,159.41

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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.