Home / 12,293.88-18,443.96-3,528.78

Finding the Fourth Proportional to 12,293.88, 18,443.96 and 3,528.78

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Solution

The fourth proportional to 12,293.88, 18,443.96 and 3,528.78 is: 5,294.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,293.88 : 18,443.96 = 3,528.78 : x
  2. Step 2: Convert to fraction form
    12,293.88/18,443.96 = 3,528.78/x
  3. Step 3: Cross multiply
    12,293.88x = 18,443.96 × 3,528.78
  4. Step 4: Simplify right side
    12,293.88x = 65,084,677.17
  5. Step 5: Solve for x
    x = 65,084,677.17/12,293.88
  6. Step 6: Final answer
    x = 5,294.07

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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.