Home / 11,082.18-15,293.64-6,606.78

Finding the Fourth Proportional to 11,082.18, 15,293.64 and 6,606.78

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Solution

The fourth proportional to 11,082.18, 15,293.64 and 6,606.78 is: 9,117.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,082.18 : 15,293.64 = 6,606.78 : x
  2. Step 2: Convert to fraction form
    11,082.18/15,293.64 = 6,606.78/x
  3. Step 3: Cross multiply
    11,082.18x = 15,293.64 × 6,606.78
  4. Step 4: Simplify right side
    11,082.18x = 101,041,714.88
  5. Step 5: Solve for x
    x = 101,041,714.88/11,082.18
  6. Step 6: Final answer
    x = 9,117.49

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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.