Home / 18,837.10-28,258.49-5,690.53

Finding the Fourth Proportional to 18,837.10, 28,258.49 and 5,690.53

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Solution

The fourth proportional to 18,837.10, 28,258.49 and 5,690.53 is: 8,536.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837.10 : 28,258.49 = 5,690.53 : x
  2. Step 2: Convert to fraction form
    18,837.10/28,258.49 = 5,690.53/x
  3. Step 3: Cross multiply
    18,837.10x = 28,258.49 × 5,690.53
  4. Step 4: Simplify right side
    18,837.10x = 160,805,785.10
  5. Step 5: Solve for x
    x = 160,805,785.10/18,837.10
  6. Step 6: Final answer
    x = 8,536.65

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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.