Home / 12,316.49-18,475.01-4,419.53

Finding the Fourth Proportional to 12,316.49, 18,475.01 and 4,419.53

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Solution

The fourth proportional to 12,316.49, 18,475.01 and 4,419.53 is: 6,629.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.49 : 18,475.01 = 4,419.53 : x
  2. Step 2: Convert to fraction form
    12,316.49/18,475.01 = 4,419.53/x
  3. Step 3: Cross multiply
    12,316.49x = 18,475.01 × 4,419.53
  4. Step 4: Simplify right side
    12,316.49x = 81,650,860.95
  5. Step 5: Solve for x
    x = 81,650,860.95/12,316.49
  6. Step 6: Final answer
    x = 6,629.39

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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.