Home / 8,856.95-12,221.68-5,453.42

Finding the Fourth Proportional to 8,856.95, 12,221.68 and 5,453.42

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Solution

The fourth proportional to 8,856.95, 12,221.68 and 5,453.42 is: 7,525.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.95 : 12,221.68 = 5,453.42 : x
  2. Step 2: Convert to fraction form
    8,856.95/12,221.68 = 5,453.42/x
  3. Step 3: Cross multiply
    8,856.95x = 12,221.68 × 5,453.42
  4. Step 4: Simplify right side
    8,856.95x = 66,649,893.04
  5. Step 5: Solve for x
    x = 66,649,893.04/8,856.95
  6. Step 6: Final answer
    x = 7,525.16

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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.