Home / 18,977.96-28,471.56-8,586.92

Finding the Fourth Proportional to 18,977.96, 28,471.56 and 8,586.92

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Solution

The fourth proportional to 18,977.96, 28,471.56 and 8,586.92 is: 12,882.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.96 : 28,471.56 = 8,586.92 : x
  2. Step 2: Convert to fraction form
    18,977.96/28,471.56 = 8,586.92/x
  3. Step 3: Cross multiply
    18,977.96x = 28,471.56 × 8,586.92
  4. Step 4: Simplify right side
    18,977.96x = 244,483,008.00
  5. Step 5: Solve for x
    x = 244,483,008.00/18,977.96
  6. Step 6: Final answer
    x = 12,882.47

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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.