Home / 13,553.15-20,329.76-8,877.08

Finding the Fourth Proportional to 13,553.15, 20,329.76 and 8,877.08

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Solution

The fourth proportional to 13,553.15, 20,329.76 and 8,877.08 is: 13,315.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.15 : 20,329.76 = 8,877.08 : x
  2. Step 2: Convert to fraction form
    13,553.15/20,329.76 = 8,877.08/x
  3. Step 3: Cross multiply
    13,553.15x = 20,329.76 × 8,877.08
  4. Step 4: Simplify right side
    13,553.15x = 180,468,759.87
  5. Step 5: Solve for x
    x = 180,468,759.87/13,553.15
  6. Step 6: Final answer
    x = 13,315.63

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1.5x scale

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.