Home / 12,590.88-18,869.32-4,795.44

Finding the Fourth Proportional to 12,590.88, 18,869.32 and 4,795.44

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Solution

The fourth proportional to 12,590.88, 18,869.32 and 4,795.44 is: 7,186.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590.88 : 18,869.32 = 4,795.44 : x
  2. Step 2: Convert to fraction form
    12,590.88/18,869.32 = 4,795.44/x
  3. Step 3: Cross multiply
    12,590.88x = 18,869.32 × 4,795.44
  4. Step 4: Simplify right side
    12,590.88x = 90,486,691.90
  5. Step 5: Solve for x
    x = 90,486,691.90/12,590.88
  6. Step 6: Final answer
    x = 7,186.69

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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.