Home / 11,081-15,291.82-6,889.24

Finding the Fourth Proportional to 11,081, 15,291.82 and 6,889.24

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Solution

The fourth proportional to 11,081, 15,291.82 and 6,889.24 is: 9,507.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,081 : 15,291.82 = 6,889.24 : x
  2. Step 2: Convert to fraction form
    11,081/15,291.82 = 6,889.24/x
  3. Step 3: Cross multiply
    11,081x = 15,291.82 × 6,889.24
  4. Step 4: Simplify right side
    11,081x = 105,349,018.02
  5. Step 5: Solve for x
    x = 105,349,018.02/11,081
  6. Step 6: Final answer
    x = 9,507.18

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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.