Home / 9,629.84-13,290.40-5,438

Finding the Fourth Proportional to 9,629.84, 13,290.40 and 5,438

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Solution

The fourth proportional to 9,629.84, 13,290.40 and 5,438 is: 7,505.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,629.84 : 13,290.40 = 5,438 : x
  2. Step 2: Convert to fraction form
    9,629.84/13,290.40 = 5,438/x
  3. Step 3: Cross multiply
    9,629.84x = 13,290.40 × 5,438
  4. Step 4: Simplify right side
    9,629.84x = 72,273,195.20
  5. Step 5: Solve for x
    x = 72,273,195.20/9,629.84
  6. Step 6: Final answer
    x = 7,505.13

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.