Home / 11,143.27-15,378.14-6,363.99

Finding the Fourth Proportional to 11,143.27, 15,378.14 and 6,363.99

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Solution

The fourth proportional to 11,143.27, 15,378.14 and 6,363.99 is: 8,782.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143.27 : 15,378.14 = 6,363.99 : x
  2. Step 2: Convert to fraction form
    11,143.27/15,378.14 = 6,363.99/x
  3. Step 3: Cross multiply
    11,143.27x = 15,378.14 × 6,363.99
  4. Step 4: Simplify right side
    11,143.27x = 97,866,297.36
  5. Step 5: Solve for x
    x = 97,866,297.36/11,143.27
  6. Step 6: Final answer
    x = 8,782.55

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1.5x scale

Why These Related Problems?

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