Home / 9,013.79-13,520.45-4,079.84

Finding the Fourth Proportional to 9,013.79, 13,520.45 and 4,079.84

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Solution

The fourth proportional to 9,013.79, 13,520.45 and 4,079.84 is: 6,119.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,013.79 : 13,520.45 = 4,079.84 : x
  2. Step 2: Convert to fraction form
    9,013.79/13,520.45 = 4,079.84/x
  3. Step 3: Cross multiply
    9,013.79x = 13,520.45 × 4,079.84
  4. Step 4: Simplify right side
    9,013.79x = 55,161,215.33
  5. Step 5: Solve for x
    x = 55,161,215.33/9,013.79
  6. Step 6: Final answer
    x = 6,119.65

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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.