Home / 13,515.16-20,275.26-5,194.84

Finding the Fourth Proportional to 13,515.16, 20,275.26 and 5,194.84

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Solution

The fourth proportional to 13,515.16, 20,275.26 and 5,194.84 is: 7,793.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.16 : 20,275.26 = 5,194.84 : x
  2. Step 2: Convert to fraction form
    13,515.16/20,275.26 = 5,194.84/x
  3. Step 3: Cross multiply
    13,515.16x = 20,275.26 × 5,194.84
  4. Step 4: Simplify right side
    13,515.16x = 105,326,731.66
  5. Step 5: Solve for x
    x = 105,326,731.66/13,515.16
  6. Step 6: Final answer
    x = 7,793.23

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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.