Home / 17,565.72-26,352.90-12,381.72

Finding the Fourth Proportional to 17,565.72, 26,352.90 and 12,381.72

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Solution

The fourth proportional to 17,565.72, 26,352.90 and 12,381.72 is: 18,575.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,565.72 : 26,352.90 = 12,381.72 : x
  2. Step 2: Convert to fraction form
    17,565.72/26,352.90 = 12,381.72/x
  3. Step 3: Cross multiply
    17,565.72x = 26,352.90 × 12,381.72
  4. Step 4: Simplify right side
    17,565.72x = 326,294,228.99
  5. Step 5: Solve for x
    x = 326,294,228.99/17,565.72
  6. Step 6: Final answer
    x = 18,575.63

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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.