Home / 9,219.64-12,719.49-5,676.70

Finding the Fourth Proportional to 9,219.64, 12,719.49 and 5,676.70

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Solution

The fourth proportional to 9,219.64, 12,719.49 and 5,676.70 is: 7,831.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,219.64 : 12,719.49 = 5,676.70 : x
  2. Step 2: Convert to fraction form
    9,219.64/12,719.49 = 5,676.70/x
  3. Step 3: Cross multiply
    9,219.64x = 12,719.49 × 5,676.70
  4. Step 4: Simplify right side
    9,219.64x = 72,204,728.88
  5. Step 5: Solve for x
    x = 72,204,728.88/9,219.64
  6. Step 6: Final answer
    x = 7,831.62

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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.