Home / 18,886.28-28,328.20-5,738.76

Finding the Fourth Proportional to 18,886.28, 28,328.20 and 5,738.76

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Solution

The fourth proportional to 18,886.28, 28,328.20 and 5,738.76 is: 8,607.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886.28 : 28,328.20 = 5,738.76 : x
  2. Step 2: Convert to fraction form
    18,886.28/28,328.20 = 5,738.76/x
  3. Step 3: Cross multiply
    18,886.28x = 28,328.20 × 5,738.76
  4. Step 4: Simplify right side
    18,886.28x = 162,568,726.69
  5. Step 5: Solve for x
    x = 162,568,726.69/18,886.28
  6. Step 6: Final answer
    x = 8,607.77

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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.