Home / 9,719.20-13,414.56-6,181.76

Finding the Fourth Proportional to 9,719.20, 13,414.56 and 6,181.76

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Solution

The fourth proportional to 9,719.20, 13,414.56 and 6,181.76 is: 8,532.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,719.20 : 13,414.56 = 6,181.76 : x
  2. Step 2: Convert to fraction form
    9,719.20/13,414.56 = 6,181.76/x
  3. Step 3: Cross multiply
    9,719.20x = 13,414.56 × 6,181.76
  4. Step 4: Simplify right side
    9,719.20x = 82,925,590.43
  5. Step 5: Solve for x
    x = 82,925,590.43/9,719.20
  6. Step 6: Final answer
    x = 8,532.14

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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.