Home / 17,709.40-26,565.66-8,938.72

Finding the Fourth Proportional to 17,709.40, 26,565.66 and 8,938.72

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Solution

The fourth proportional to 17,709.40, 26,565.66 and 8,938.72 is: 13,408.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,709.40 : 26,565.66 = 8,938.72 : x
  2. Step 2: Convert to fraction form
    17,709.40/26,565.66 = 8,938.72/x
  3. Step 3: Cross multiply
    17,709.40x = 26,565.66 × 8,938.72
  4. Step 4: Simplify right side
    17,709.40x = 237,462,996.36
  5. Step 5: Solve for x
    x = 237,462,996.36/17,709.40
  6. Step 6: Final answer
    x = 13,408.87

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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.