Home / 12,572.07-18,860.53-4,253.43

Finding the Fourth Proportional to 12,572.07, 18,860.53 and 4,253.43

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Solution

The fourth proportional to 12,572.07, 18,860.53 and 4,253.43 is: 6,380.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,572.07 : 18,860.53 = 4,253.43 : x
  2. Step 2: Convert to fraction form
    12,572.07/18,860.53 = 4,253.43/x
  3. Step 3: Cross multiply
    12,572.07x = 18,860.53 × 4,253.43
  4. Step 4: Simplify right side
    12,572.07x = 80,221,944.12
  5. Step 5: Solve for x
    x = 80,221,944.12/12,572.07
  6. Step 6: Final answer
    x = 6,380.97

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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.