Home / 18,827.72-28,233.37-6,345.42

Finding the Fourth Proportional to 18,827.72, 28,233.37 and 6,345.42

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Solution

The fourth proportional to 18,827.72, 28,233.37 and 6,345.42 is: 9,515.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,827.72 : 28,233.37 = 6,345.42 : x
  2. Step 2: Convert to fraction form
    18,827.72/28,233.37 = 6,345.42/x
  3. Step 3: Cross multiply
    18,827.72x = 28,233.37 × 6,345.42
  4. Step 4: Simplify right side
    18,827.72x = 179,152,590.67
  5. Step 5: Solve for x
    x = 179,152,590.67/18,827.72
  6. Step 6: Final answer
    x = 9,515.36

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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.