Home / 18,959.29-28,442.31-6,480.70

Finding the Fourth Proportional to 18,959.29, 28,442.31 and 6,480.70

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Solution

The fourth proportional to 18,959.29, 28,442.31 and 6,480.70 is: 9,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,959.29 : 28,442.31 = 6,480.70 : x
  2. Step 2: Convert to fraction form
    18,959.29/28,442.31 = 6,480.70/x
  3. Step 3: Cross multiply
    18,959.29x = 28,442.31 × 6,480.70
  4. Step 4: Simplify right side
    18,959.29x = 184,326,078.42
  5. Step 5: Solve for x
    x = 184,326,078.42/18,959.29
  6. Step 6: Final answer
    x = 9,722.20

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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.