Home / 10,363.90-15,541.80-3,786.70

Finding the Fourth Proportional to 10,363.90, 15,541.80 and 3,786.70

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Solution

The fourth proportional to 10,363.90, 15,541.80 and 3,786.70 is: 5,678.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,363.90 : 15,541.80 = 3,786.70 : x
  2. Step 2: Convert to fraction form
    10,363.90/15,541.80 = 3,786.70/x
  3. Step 3: Cross multiply
    10,363.90x = 15,541.80 × 3,786.70
  4. Step 4: Simplify right side
    10,363.90x = 58,852,134.06
  5. Step 5: Solve for x
    x = 58,852,134.06/10,363.90
  6. Step 6: Final answer
    x = 5,678.57

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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.