Home / 11,143.68-15,378.22-6,108.11

Finding the Fourth Proportional to 11,143.68, 15,378.22 and 6,108.11

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Solution

The fourth proportional to 11,143.68, 15,378.22 and 6,108.11 is: 8,429.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143.68 : 15,378.22 = 6,108.11 : x
  2. Step 2: Convert to fraction form
    11,143.68/15,378.22 = 6,108.11/x
  3. Step 3: Cross multiply
    11,143.68x = 15,378.22 × 6,108.11
  4. Step 4: Simplify right side
    11,143.68x = 93,931,859.36
  5. Step 5: Solve for x
    x = 93,931,859.36/11,143.68
  6. Step 6: Final answer
    x = 8,429.16

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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.