Home / 11,411.72-17,117.58-3,620.53

Finding the Fourth Proportional to 11,411.72, 17,117.58 and 3,620.53

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Solution

The fourth proportional to 11,411.72, 17,117.58 and 3,620.53 is: 5,430.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,411.72 : 17,117.58 = 3,620.53 : x
  2. Step 2: Convert to fraction form
    11,411.72/17,117.58 = 3,620.53/x
  3. Step 3: Cross multiply
    11,411.72x = 17,117.58 × 3,620.53
  4. Step 4: Simplify right side
    11,411.72x = 61,974,726.53
  5. Step 5: Solve for x
    x = 61,974,726.53/11,411.72
  6. Step 6: Final answer
    x = 5,430.80

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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.