Home / 8,069.79-12,101.61-3,138.84

Finding the Fourth Proportional to 8,069.79, 12,101.61 and 3,138.84

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Solution

The fourth proportional to 8,069.79, 12,101.61 and 3,138.84 is: 4,707.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,069.79 : 12,101.61 = 3,138.84 : x
  2. Step 2: Convert to fraction form
    8,069.79/12,101.61 = 3,138.84/x
  3. Step 3: Cross multiply
    8,069.79x = 12,101.61 × 3,138.84
  4. Step 4: Simplify right side
    8,069.79x = 37,985,017.53
  5. Step 5: Solve for x
    x = 37,985,017.53/8,069.79
  6. Step 6: Final answer
    x = 4,707.06

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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.