Home / 10,428.84-15,648.40-4,882.56

Finding the Fourth Proportional to 10,428.84, 15,648.40 and 4,882.56

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Solution

The fourth proportional to 10,428.84, 15,648.40 and 4,882.56 is: 7,326.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428.84 : 15,648.40 = 4,882.56 : x
  2. Step 2: Convert to fraction form
    10,428.84/15,648.40 = 4,882.56/x
  3. Step 3: Cross multiply
    10,428.84x = 15,648.40 × 4,882.56
  4. Step 4: Simplify right side
    10,428.84x = 76,404,251.90
  5. Step 5: Solve for x
    x = 76,404,251.90/10,428.84
  6. Step 6: Final answer
    x = 7,326.25

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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.