Home / 8,712.92-13,069.32-3,518.72

Finding the Fourth Proportional to 8,712.92, 13,069.32 and 3,518.72

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Solution

The fourth proportional to 8,712.92, 13,069.32 and 3,518.72 is: 5,278.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.92 : 13,069.32 = 3,518.72 : x
  2. Step 2: Convert to fraction form
    8,712.92/13,069.32 = 3,518.72/x
  3. Step 3: Cross multiply
    8,712.92x = 13,069.32 × 3,518.72
  4. Step 4: Simplify right side
    8,712.92x = 45,987,277.67
  5. Step 5: Solve for x
    x = 45,987,277.67/8,712.92
  6. Step 6: Final answer
    x = 5,278.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.