Home / 12,590.24-18,885.36-3,356

Finding the Fourth Proportional to 12,590.24, 18,885.36 and 3,356

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Solution

The fourth proportional to 12,590.24, 18,885.36 and 3,356 is: 5,034

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590.24 : 18,885.36 = 3,356 : x
  2. Step 2: Convert to fraction form
    12,590.24/18,885.36 = 3,356/x
  3. Step 3: Cross multiply
    12,590.24x = 18,885.36 × 3,356
  4. Step 4: Simplify right side
    12,590.24x = 63,379,268.16
  5. Step 5: Solve for x
    x = 63,379,268.16/12,590.24
  6. Step 6: Final answer
    x = 5,034

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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.