Home / 12,118.68-18,178.56-3,799.53

Finding the Fourth Proportional to 12,118.68, 18,178.56 and 3,799.53

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Solution

The fourth proportional to 12,118.68, 18,178.56 and 3,799.53 is: 5,699.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,118.68 : 18,178.56 = 3,799.53 : x
  2. Step 2: Convert to fraction form
    12,118.68/18,178.56 = 3,799.53/x
  3. Step 3: Cross multiply
    12,118.68x = 18,178.56 × 3,799.53
  4. Step 4: Simplify right side
    12,118.68x = 69,069,984.08
  5. Step 5: Solve for x
    x = 69,069,984.08/12,118.68
  6. Step 6: Final answer
    x = 5,699.46

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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.