Home / 11,145.76-15,381.26-6,110.08

Finding the Fourth Proportional to 11,145.76, 15,381.26 and 6,110.08

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Solution

The fourth proportional to 11,145.76, 15,381.26 and 6,110.08 is: 8,431.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.76 : 15,381.26 = 6,110.08 : x
  2. Step 2: Convert to fraction form
    11,145.76/15,381.26 = 6,110.08/x
  3. Step 3: Cross multiply
    11,145.76x = 15,381.26 × 6,110.08
  4. Step 4: Simplify right side
    11,145.76x = 93,980,769.53
  5. Step 5: Solve for x
    x = 93,980,769.53/11,145.76
  6. Step 6: Final answer
    x = 8,431.97

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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.