Home / 18,979.86-28,466.87-6,497.02

Finding the Fourth Proportional to 18,979.86, 28,466.87 and 6,497.02

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Solution

The fourth proportional to 18,979.86, 28,466.87 and 6,497.02 is: 9,744.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,979.86 : 28,466.87 = 6,497.02 : x
  2. Step 2: Convert to fraction form
    18,979.86/28,466.87 = 6,497.02/x
  3. Step 3: Cross multiply
    18,979.86x = 28,466.87 × 6,497.02
  4. Step 4: Simplify right side
    18,979.86x = 184,949,826.83
  5. Step 5: Solve for x
    x = 184,949,826.83/18,979.86
  6. Step 6: Final answer
    x = 9,744.53

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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.