Home / 8,118.32-11,203.80-4,974.08

Finding the Fourth Proportional to 8,118.32, 11,203.80 and 4,974.08

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Solution

The fourth proportional to 8,118.32, 11,203.80 and 4,974.08 is: 6,864.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.32 : 11,203.80 = 4,974.08 : x
  2. Step 2: Convert to fraction form
    8,118.32/11,203.80 = 4,974.08/x
  3. Step 3: Cross multiply
    8,118.32x = 11,203.80 × 4,974.08
  4. Step 4: Simplify right side
    8,118.32x = 55,728,597.50
  5. Step 5: Solve for x
    x = 55,728,597.50/8,118.32
  6. Step 6: Final answer
    x = 6,864.55

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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.