Home / 18,430.56-27,647.28-6,743.52

Finding the Fourth Proportional to 18,430.56, 27,647.28 and 6,743.52

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Solution

The fourth proportional to 18,430.56, 27,647.28 and 6,743.52 is: 10,115.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,430.56 : 27,647.28 = 6,743.52 : x
  2. Step 2: Convert to fraction form
    18,430.56/27,647.28 = 6,743.52/x
  3. Step 3: Cross multiply
    18,430.56x = 27,647.28 × 6,743.52
  4. Step 4: Simplify right side
    18,430.56x = 186,439,985.63
  5. Step 5: Solve for x
    x = 186,439,985.63/18,430.56
  6. Step 6: Final answer
    x = 10,115.81

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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.