Home / 10,221.64-15,326.66-3,555.06

Finding the Fourth Proportional to 10,221.64, 15,326.66 and 3,555.06

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Solution

The fourth proportional to 10,221.64, 15,326.66 and 3,555.06 is: 5,330.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.64 : 15,326.66 = 3,555.06 : x
  2. Step 2: Convert to fraction form
    10,221.64/15,326.66 = 3,555.06/x
  3. Step 3: Cross multiply
    10,221.64x = 15,326.66 × 3,555.06
  4. Step 4: Simplify right side
    10,221.64x = 54,487,195.90
  5. Step 5: Solve for x
    x = 54,487,195.90/10,221.64
  6. Step 6: Final answer
    x = 5,330.57

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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.