Home / 12,419.68-18,629.67-4,925.08

Finding the Fourth Proportional to 12,419.68, 18,629.67 and 4,925.08

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Solution

The fourth proportional to 12,419.68, 18,629.67 and 4,925.08 is: 7,387.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,419.68 : 18,629.67 = 4,925.08 : x
  2. Step 2: Convert to fraction form
    12,419.68/18,629.67 = 4,925.08/x
  3. Step 3: Cross multiply
    12,419.68x = 18,629.67 × 4,925.08
  4. Step 4: Simplify right side
    12,419.68x = 91,752,615.12
  5. Step 5: Solve for x
    x = 91,752,615.12/12,419.68
  6. Step 6: Final answer
    x = 7,387.68

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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.