Home / 18,543.95-27,818.58-5,722.21

Finding the Fourth Proportional to 18,543.95, 27,818.58 and 5,722.21

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Solution

The fourth proportional to 18,543.95, 27,818.58 and 5,722.21 is: 8,584.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,543.95 : 27,818.58 = 5,722.21 : x
  2. Step 2: Convert to fraction form
    18,543.95/27,818.58 = 5,722.21/x
  3. Step 3: Cross multiply
    18,543.95x = 27,818.58 × 5,722.21
  4. Step 4: Simplify right side
    18,543.95x = 159,183,687.12
  5. Step 5: Solve for x
    x = 159,183,687.12/18,543.95
  6. Step 6: Final answer
    x = 8,584.13

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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.