Home / 11,143.16-15,375.61-6,360.92

Finding the Fourth Proportional to 11,143.16, 15,375.61 and 6,360.92

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Solution

The fourth proportional to 11,143.16, 15,375.61 and 6,360.92 is: 8,776.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143.16 : 15,375.61 = 6,360.92 : x
  2. Step 2: Convert to fraction form
    11,143.16/15,375.61 = 6,360.92/x
  3. Step 3: Cross multiply
    11,143.16x = 15,375.61 × 6,360.92
  4. Step 4: Simplify right side
    11,143.16x = 97,803,025.16
  5. Step 5: Solve for x
    x = 97,803,025.16/11,143.16
  6. Step 6: Final answer
    x = 8,776.96

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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.