Home / 13,614.76-18,775.87-8,829.70

Finding the Fourth Proportional to 13,614.76, 18,775.87 and 8,829.70

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Solution

The fourth proportional to 13,614.76, 18,775.87 and 8,829.70 is: 12,176.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.76 : 18,775.87 = 8,829.70 : x
  2. Step 2: Convert to fraction form
    13,614.76/18,775.87 = 8,829.70/x
  3. Step 3: Cross multiply
    13,614.76x = 18,775.87 × 8,829.70
  4. Step 4: Simplify right side
    13,614.76x = 165,785,299.34
  5. Step 5: Solve for x
    x = 165,785,299.34/13,614.76
  6. Step 6: Final answer
    x = 12,176.88

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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.