Home / 12,590.76-17,249.48-12,117.92

Finding the Fourth Proportional to 12,590.76, 17,249.48 and 12,117.92

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Solution

The fourth proportional to 12,590.76, 17,249.48 and 12,117.92 is: 16,601.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590.76 : 17,249.48 = 12,117.92 : x
  2. Step 2: Convert to fraction form
    12,590.76/17,249.48 = 12,117.92/x
  3. Step 3: Cross multiply
    12,590.76x = 17,249.48 × 12,117.92
  4. Step 4: Simplify right side
    12,590.76x = 209,027,818.68
  5. Step 5: Solve for x
    x = 209,027,818.68/12,590.76
  6. Step 6: Final answer
    x = 16,601.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.