Home / 18,959.25-28,443.32-6,479.38

Finding the Fourth Proportional to 18,959.25, 28,443.32 and 6,479.38

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Solution

The fourth proportional to 18,959.25, 28,443.32 and 6,479.38 is: 9,720.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,959.25 : 28,443.32 = 6,479.38 : x
  2. Step 2: Convert to fraction form
    18,959.25/28,443.32 = 6,479.38/x
  3. Step 3: Cross multiply
    18,959.25x = 28,443.32 × 6,479.38
  4. Step 4: Simplify right side
    18,959.25x = 184,294,904.13
  5. Step 5: Solve for x
    x = 184,294,904.13/18,959.25
  6. Step 6: Final answer
    x = 9,720.58

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1.5x scale

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.