Home / 12,590.06-18,859.15-7,383.38

Finding the Fourth Proportional to 12,590.06, 18,859.15 and 7,383.38

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Solution

The fourth proportional to 12,590.06, 18,859.15 and 7,383.38 is: 11,059.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590.06 : 18,859.15 = 7,383.38 : x
  2. Step 2: Convert to fraction form
    12,590.06/18,859.15 = 7,383.38/x
  3. Step 3: Cross multiply
    12,590.06x = 18,859.15 × 7,383.38
  4. Step 4: Simplify right side
    12,590.06x = 139,244,270.93
  5. Step 5: Solve for x
    x = 139,244,270.93/12,590.06
  6. Step 6: Final answer
    x = 11,059.86

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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.