Home / 15,555.33-21,465.44-8,840.03

Finding the Fourth Proportional to 15,555.33, 21,465.44 and 8,840.03

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Solution

The fourth proportional to 15,555.33, 21,465.44 and 8,840.03 is: 12,198.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.33 : 21,465.44 = 8,840.03 : x
  2. Step 2: Convert to fraction form
    15,555.33/21,465.44 = 8,840.03/x
  3. Step 3: Cross multiply
    15,555.33x = 21,465.44 × 8,840.03
  4. Step 4: Simplify right side
    15,555.33x = 189,754,982.04
  5. Step 5: Solve for x
    x = 189,754,982.04/15,555.33
  6. Step 6: Final answer
    x = 12,198.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.