Home / 11,158.08-15,401.28-6,684.72

Finding the Fourth Proportional to 11,158.08, 15,401.28 and 6,684.72

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Solution

The fourth proportional to 11,158.08, 15,401.28 and 6,684.72 is: 9,226.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,158.08 : 15,401.28 = 6,684.72 : x
  2. Step 2: Convert to fraction form
    11,158.08/15,401.28 = 6,684.72/x
  3. Step 3: Cross multiply
    11,158.08x = 15,401.28 × 6,684.72
  4. Step 4: Simplify right side
    11,158.08x = 102,953,244.44
  5. Step 5: Solve for x
    x = 102,953,244.44/11,158.08
  6. Step 6: Final answer
    x = 9,226.79

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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.