Home / 10,185.36-15,274.29-3,520.17

Finding the Fourth Proportional to 10,185.36, 15,274.29 and 3,520.17

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Solution

The fourth proportional to 10,185.36, 15,274.29 and 3,520.17 is: 5,278.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,185.36 : 15,274.29 = 3,520.17 : x
  2. Step 2: Convert to fraction form
    10,185.36/15,274.29 = 3,520.17/x
  3. Step 3: Cross multiply
    10,185.36x = 15,274.29 × 3,520.17
  4. Step 4: Simplify right side
    10,185.36x = 53,768,084.23
  5. Step 5: Solve for x
    x = 53,768,084.23/10,185.36
  6. Step 6: Final answer
    x = 5,278.96

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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.