Home / 11,145.81-15,381.14-6,110.24

Finding the Fourth Proportional to 11,145.81, 15,381.14 and 6,110.24

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Solution

The fourth proportional to 11,145.81, 15,381.14 and 6,110.24 is: 8,432.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.81 : 15,381.14 = 6,110.24 : x
  2. Step 2: Convert to fraction form
    11,145.81/15,381.14 = 6,110.24/x
  3. Step 3: Cross multiply
    11,145.81x = 15,381.14 × 6,110.24
  4. Step 4: Simplify right side
    11,145.81x = 93,982,456.87
  5. Step 5: Solve for x
    x = 93,982,456.87/11,145.81
  6. Step 6: Final answer
    x = 8,432.09

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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.