Home / 18,837.80-28,256.92-5,690.76

Finding the Fourth Proportional to 18,837.80, 28,256.92 and 5,690.76

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Solution

The fourth proportional to 18,837.80, 28,256.92 and 5,690.76 is: 8,536.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837.80 : 28,256.92 = 5,690.76 : x
  2. Step 2: Convert to fraction form
    18,837.80/28,256.92 = 5,690.76/x
  3. Step 3: Cross multiply
    18,837.80x = 28,256.92 × 5,690.76
  4. Step 4: Simplify right side
    18,837.80x = 160,803,350.06
  5. Step 5: Solve for x
    x = 160,803,350.06/18,837.80
  6. Step 6: Final answer
    x = 8,536.21

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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.