Home / 10,243.80-15,363.54-4,976.55

Finding the Fourth Proportional to 10,243.80, 15,363.54 and 4,976.55

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Solution

The fourth proportional to 10,243.80, 15,363.54 and 4,976.55 is: 7,463.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,243.80 : 15,363.54 = 4,976.55 : x
  2. Step 2: Convert to fraction form
    10,243.80/15,363.54 = 4,976.55/x
  3. Step 3: Cross multiply
    10,243.80x = 15,363.54 × 4,976.55
  4. Step 4: Simplify right side
    10,243.80x = 76,457,424.99
  5. Step 5: Solve for x
    x = 76,457,424.99/10,243.80
  6. Step 6: Final answer
    x = 7,463.78

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1.5x scale

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.