Home / 14,727.12-20,320.66-8,760.24

Finding the Fourth Proportional to 14,727.12, 20,320.66 and 8,760.24

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Solution

The fourth proportional to 14,727.12, 20,320.66 and 8,760.24 is: 12,087.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,727.12 : 20,320.66 = 8,760.24 : x
  2. Step 2: Convert to fraction form
    14,727.12/20,320.66 = 8,760.24/x
  3. Step 3: Cross multiply
    14,727.12x = 20,320.66 × 8,760.24
  4. Step 4: Simplify right side
    14,727.12x = 178,013,858.56
  5. Step 5: Solve for x
    x = 178,013,858.56/14,727.12
  6. Step 6: Final answer
    x = 12,087.49

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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.