Home / 7,714.97-10,646.61-4,178.18

Finding the Fourth Proportional to 7,714.97, 10,646.61 and 4,178.18

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Solution

The fourth proportional to 7,714.97, 10,646.61 and 4,178.18 is: 5,765.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,714.97 : 10,646.61 = 4,178.18 : x
  2. Step 2: Convert to fraction form
    7,714.97/10,646.61 = 4,178.18/x
  3. Step 3: Cross multiply
    7,714.97x = 10,646.61 × 4,178.18
  4. Step 4: Simplify right side
    7,714.97x = 44,483,399.74
  5. Step 5: Solve for x
    x = 44,483,399.74/7,714.97
  6. Step 6: Final answer
    x = 5,765.86

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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.