Home / 13,515.24-20,272.84-6,118.32

Finding the Fourth Proportional to 13,515.24, 20,272.84 and 6,118.32

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Solution

The fourth proportional to 13,515.24, 20,272.84 and 6,118.32 is: 9,177.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.24 : 20,272.84 = 6,118.32 : x
  2. Step 2: Convert to fraction form
    13,515.24/20,272.84 = 6,118.32/x
  3. Step 3: Cross multiply
    13,515.24x = 20,272.84 × 6,118.32
  4. Step 4: Simplify right side
    13,515.24x = 124,035,722.43
  5. Step 5: Solve for x
    x = 124,035,722.43/13,515.24
  6. Step 6: Final answer
    x = 9,177.47

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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.