Home / 8,118.32-11,209.22-5,248.74

Finding the Fourth Proportional to 8,118.32, 11,209.22 and 5,248.74

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Solution

The fourth proportional to 8,118.32, 11,209.22 and 5,248.74 is: 7,247.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.32 : 11,209.22 = 5,248.74 : x
  2. Step 2: Convert to fraction form
    8,118.32/11,209.22 = 5,248.74/x
  3. Step 3: Cross multiply
    8,118.32x = 11,209.22 × 5,248.74
  4. Step 4: Simplify right side
    8,118.32x = 58,834,255.14
  5. Step 5: Solve for x
    x = 58,834,255.14/8,118.32
  6. Step 6: Final answer
    x = 7,247.10

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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.