Home / 18,983.79-28,478.40-5,837.26

Finding the Fourth Proportional to 18,983.79, 28,478.40 and 5,837.26

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Solution

The fourth proportional to 18,983.79, 28,478.40 and 5,837.26 is: 8,756.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,983.79 : 28,478.40 = 5,837.26 : x
  2. Step 2: Convert to fraction form
    18,983.79/28,478.40 = 5,837.26/x
  3. Step 3: Cross multiply
    18,983.79x = 28,478.40 × 5,837.26
  4. Step 4: Simplify right side
    18,983.79x = 166,235,825.18
  5. Step 5: Solve for x
    x = 166,235,825.18/18,983.79
  6. Step 6: Final answer
    x = 8,756.72

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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.