Home / 18,808.02-28,213.80-5,299.14

Finding the Fourth Proportional to 18,808.02, 28,213.80 and 5,299.14

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Solution

The fourth proportional to 18,808.02, 28,213.80 and 5,299.14 is: 7,949.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,808.02 : 28,213.80 = 5,299.14 : x
  2. Step 2: Convert to fraction form
    18,808.02/28,213.80 = 5,299.14/x
  3. Step 3: Cross multiply
    18,808.02x = 28,213.80 × 5,299.14
  4. Step 4: Simplify right side
    18,808.02x = 149,508,876.13
  5. Step 5: Solve for x
    x = 149,508,876.13/18,808.02
  6. Step 6: Final answer
    x = 7,949.21

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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.