Home / 16,690.08-25,019.76-12,972

Finding the Fourth Proportional to 16,690.08, 25,019.76 and 12,972

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Solution

The fourth proportional to 16,690.08, 25,019.76 and 12,972 is: 19,446.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,690.08 : 25,019.76 = 12,972 : x
  2. Step 2: Convert to fraction form
    16,690.08/25,019.76 = 12,972/x
  3. Step 3: Cross multiply
    16,690.08x = 25,019.76 × 12,972
  4. Step 4: Simplify right side
    16,690.08x = 324,556,326.72
  5. Step 5: Solve for x
    x = 324,556,326.72/16,690.08
  6. Step 6: Final answer
    x = 19,446.06

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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.