Home / 13,824.78-19,079.85-8,727.71

Finding the Fourth Proportional to 13,824.78, 19,079.85 and 8,727.71

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Solution

The fourth proportional to 13,824.78, 19,079.85 and 8,727.71 is: 12,045.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.78 : 19,079.85 = 8,727.71 : x
  2. Step 2: Convert to fraction form
    13,824.78/19,079.85 = 8,727.71/x
  3. Step 3: Cross multiply
    13,824.78x = 19,079.85 × 8,727.71
  4. Step 4: Simplify right side
    13,824.78x = 166,523,285.88
  5. Step 5: Solve for x
    x = 166,523,285.88/13,824.78
  6. Step 6: Final answer
    x = 12,045.27

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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.