Home / 19,419.16-26,790.03-12,243.42

Finding the Fourth Proportional to 19,419.16, 26,790.03 and 12,243.42

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Solution

The fourth proportional to 19,419.16, 26,790.03 and 12,243.42 is: 16,890.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.16 : 26,790.03 = 12,243.42 : x
  2. Step 2: Convert to fraction form
    19,419.16/26,790.03 = 12,243.42/x
  3. Step 3: Cross multiply
    19,419.16x = 26,790.03 × 12,243.42
  4. Step 4: Simplify right side
    19,419.16x = 328,001,589.10
  5. Step 5: Solve for x
    x = 328,001,589.10/19,419.16
  6. Step 6: Final answer
    x = 16,890.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.