Home / 8,917.74-13,322.38-5,772.12

Finding the Fourth Proportional to 8,917.74, 13,322.38 and 5,772.12

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Solution

The fourth proportional to 8,917.74, 13,322.38 and 5,772.12 is: 8,623.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.74 : 13,322.38 = 5,772.12 : x
  2. Step 2: Convert to fraction form
    8,917.74/13,322.38 = 5,772.12/x
  3. Step 3: Cross multiply
    8,917.74x = 13,322.38 × 5,772.12
  4. Step 4: Simplify right side
    8,917.74x = 76,898,376.05
  5. Step 5: Solve for x
    x = 76,898,376.05/8,917.74
  6. Step 6: Final answer
    x = 8,623.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.