Home / 13,515.26-20,280.24-6,119.15

Finding the Fourth Proportional to 13,515.26, 20,280.24 and 6,119.15

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Solution

The fourth proportional to 13,515.26, 20,280.24 and 6,119.15 is: 9,182.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.26 : 20,280.24 = 6,119.15 : x
  2. Step 2: Convert to fraction form
    13,515.26/20,280.24 = 6,119.15/x
  3. Step 3: Cross multiply
    13,515.26x = 20,280.24 × 6,119.15
  4. Step 4: Simplify right side
    13,515.26x = 124,097,729.19
  5. Step 5: Solve for x
    x = 124,097,729.19/13,515.26
  6. Step 6: Final answer
    x = 9,182.05

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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.