Home / 8,769.43-12,099.65-5,629.87

Finding the Fourth Proportional to 8,769.43, 12,099.65 and 5,629.87

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Solution

The fourth proportional to 8,769.43, 12,099.65 and 5,629.87 is: 7,767.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,769.43 : 12,099.65 = 5,629.87 : x
  2. Step 2: Convert to fraction form
    8,769.43/12,099.65 = 5,629.87/x
  3. Step 3: Cross multiply
    8,769.43x = 12,099.65 × 5,629.87
  4. Step 4: Simplify right side
    8,769.43x = 68,119,428.40
  5. Step 5: Solve for x
    x = 68,119,428.40/8,769.43
  6. Step 6: Final answer
    x = 7,767.83

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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.