Home / 8,065.12-11,129.85-4,528.35

Finding the Fourth Proportional to 8,065.12, 11,129.85 and 4,528.35

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Solution

The fourth proportional to 8,065.12, 11,129.85 and 4,528.35 is: 6,249.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065.12 : 11,129.85 = 4,528.35 : x
  2. Step 2: Convert to fraction form
    8,065.12/11,129.85 = 4,528.35/x
  3. Step 3: Cross multiply
    8,065.12x = 11,129.85 × 4,528.35
  4. Step 4: Simplify right side
    8,065.12x = 50,399,856.25
  5. Step 5: Solve for x
    x = 50,399,856.25/8,065.12
  6. Step 6: Final answer
    x = 6,249.11

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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.