Home / 10,428.36-15,632.82-3,498

Finding the Fourth Proportional to 10,428.36, 15,632.82 and 3,498

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Solution

The fourth proportional to 10,428.36, 15,632.82 and 3,498 is: 5,243.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428.36 : 15,632.82 = 3,498 : x
  2. Step 2: Convert to fraction form
    10,428.36/15,632.82 = 3,498/x
  3. Step 3: Cross multiply
    10,428.36x = 15,632.82 × 3,498
  4. Step 4: Simplify right side
    10,428.36x = 54,683,604.36
  5. Step 5: Solve for x
    x = 54,683,604.36/10,428.36
  6. Step 6: Final answer
    x = 5,243.74

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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.