Home / 11,153.40-16,738.19-8,988.27

Finding the Fourth Proportional to 11,153.40, 16,738.19 and 8,988.27

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Solution

The fourth proportional to 11,153.40, 16,738.19 and 8,988.27 is: 13,488.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.40 : 16,738.19 = 8,988.27 : x
  2. Step 2: Convert to fraction form
    11,153.40/16,738.19 = 8,988.27/x
  3. Step 3: Cross multiply
    11,153.40x = 16,738.19 × 8,988.27
  4. Step 4: Simplify right side
    11,153.40x = 150,447,347.59
  5. Step 5: Solve for x
    x = 150,447,347.59/11,153.40
  6. Step 6: Final answer
    x = 13,488.93

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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.