Home / 15,002.88-20,704.15-8,288.37

Finding the Fourth Proportional to 15,002.88, 20,704.15 and 8,288.37

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Solution

The fourth proportional to 15,002.88, 20,704.15 and 8,288.37 is: 11,438.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,002.88 : 20,704.15 = 8,288.37 : x
  2. Step 2: Convert to fraction form
    15,002.88/20,704.15 = 8,288.37/x
  3. Step 3: Cross multiply
    15,002.88x = 20,704.15 × 8,288.37
  4. Step 4: Simplify right side
    15,002.88x = 171,603,588.46
  5. Step 5: Solve for x
    x = 171,603,588.46/15,002.88
  6. Step 6: Final answer
    x = 11,438.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.