Home / 8,119.96-12,178.51-2,277.02

Finding the Fourth Proportional to 8,119.96, 12,178.51 and 2,277.02

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Solution

The fourth proportional to 8,119.96, 12,178.51 and 2,277.02 is: 3,415.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.96 : 12,178.51 = 2,277.02 : x
  2. Step 2: Convert to fraction form
    8,119.96/12,178.51 = 2,277.02/x
  3. Step 3: Cross multiply
    8,119.96x = 12,178.51 × 2,277.02
  4. Step 4: Simplify right side
    8,119.96x = 27,730,710.84
  5. Step 5: Solve for x
    x = 27,730,710.84/8,119.96
  6. Step 6: Final answer
    x = 3,415.13

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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.