Home / 12,575.52-18,858.96-4,786.56

Finding the Fourth Proportional to 12,575.52, 18,858.96 and 4,786.56

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Solution

The fourth proportional to 12,575.52, 18,858.96 and 4,786.56 is: 7,178.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,575.52 : 18,858.96 = 4,786.56 : x
  2. Step 2: Convert to fraction form
    12,575.52/18,858.96 = 4,786.56/x
  3. Step 3: Cross multiply
    12,575.52x = 18,858.96 × 4,786.56
  4. Step 4: Simplify right side
    12,575.52x = 90,269,543.58
  5. Step 5: Solve for x
    x = 90,269,543.58/12,575.52
  6. Step 6: Final answer
    x = 7,178.20

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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.