Home / 18,788.24-28,182.29-5,640.59

Finding the Fourth Proportional to 18,788.24, 28,182.29 and 5,640.59

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Solution

The fourth proportional to 18,788.24, 28,182.29 and 5,640.59 is: 8,460.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788.24 : 28,182.29 = 5,640.59 : x
  2. Step 2: Convert to fraction form
    18,788.24/28,182.29 = 5,640.59/x
  3. Step 3: Cross multiply
    18,788.24x = 28,182.29 × 5,640.59
  4. Step 4: Simplify right side
    18,788.24x = 158,964,574.04
  5. Step 5: Solve for x
    x = 158,964,574.04/18,788.24
  6. Step 6: Final answer
    x = 8,460.86

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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.