Home / 13,891.42-20,837.04-3,503.17

Finding the Fourth Proportional to 13,891.42, 20,837.04 and 3,503.17

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Solution

The fourth proportional to 13,891.42, 20,837.04 and 3,503.17 is: 5,254.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.42 : 20,837.04 = 3,503.17 : x
  2. Step 2: Convert to fraction form
    13,891.42/20,837.04 = 3,503.17/x
  3. Step 3: Cross multiply
    13,891.42x = 20,837.04 × 3,503.17
  4. Step 4: Simplify right side
    13,891.42x = 72,995,693.42
  5. Step 5: Solve for x
    x = 72,995,693.42/13,891.42
  6. Step 6: Final answer
    x = 5,254.73

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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.