Home / 13,250.79-18,288.66-8,774.73

Finding the Fourth Proportional to 13,250.79, 18,288.66 and 8,774.73

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Solution

The fourth proportional to 13,250.79, 18,288.66 and 8,774.73 is: 12,110.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250.79 : 18,288.66 = 8,774.73 : x
  2. Step 2: Convert to fraction form
    13,250.79/18,288.66 = 8,774.73/x
  3. Step 3: Cross multiply
    13,250.79x = 18,288.66 × 8,774.73
  4. Step 4: Simplify right side
    13,250.79x = 160,478,053.56
  5. Step 5: Solve for x
    x = 160,478,053.56/13,250.79
  6. Step 6: Final answer
    x = 12,110.83

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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.