Home / 13,837.91-20,770.99-10,129.12

Finding the Fourth Proportional to 13,837.91, 20,770.99 and 10,129.12

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Solution

The fourth proportional to 13,837.91, 20,770.99 and 10,129.12 is: 15,204.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,837.91 : 20,770.99 = 10,129.12 : x
  2. Step 2: Convert to fraction form
    13,837.91/20,770.99 = 10,129.12/x
  3. Step 3: Cross multiply
    13,837.91x = 20,770.99 × 10,129.12
  4. Step 4: Simplify right side
    13,837.91x = 210,391,772.98
  5. Step 5: Solve for x
    x = 210,391,772.98/13,837.91
  6. Step 6: Final answer
    x = 15,204.02

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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.