Home / 18,979.64-28,466.53-6,496.80

Finding the Fourth Proportional to 18,979.64, 28,466.53 and 6,496.80

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Solution

The fourth proportional to 18,979.64, 28,466.53 and 6,496.80 is: 9,744.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,979.64 : 28,466.53 = 6,496.80 : x
  2. Step 2: Convert to fraction form
    18,979.64/28,466.53 = 6,496.80/x
  3. Step 3: Cross multiply
    18,979.64x = 28,466.53 × 6,496.80
  4. Step 4: Simplify right side
    18,979.64x = 184,941,352.10
  5. Step 5: Solve for x
    x = 184,941,352.10/18,979.64
  6. Step 6: Final answer
    x = 9,744.20

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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.