Home / 10,868.68-16,298.10-4,289.80

Finding the Fourth Proportional to 10,868.68, 16,298.10 and 4,289.80

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Solution

The fourth proportional to 10,868.68, 16,298.10 and 4,289.80 is: 6,432.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,868.68 : 16,298.10 = 4,289.80 : x
  2. Step 2: Convert to fraction form
    10,868.68/16,298.10 = 4,289.80/x
  3. Step 3: Cross multiply
    10,868.68x = 16,298.10 × 4,289.80
  4. Step 4: Simplify right side
    10,868.68x = 69,915,589.38
  5. Step 5: Solve for x
    x = 69,915,589.38/10,868.68
  6. Step 6: Final answer
    x = 6,432.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.