Home / 11,104.13-15,324.18-6,388.40

Finding the Fourth Proportional to 11,104.13, 15,324.18 and 6,388.40

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Solution

The fourth proportional to 11,104.13, 15,324.18 and 6,388.40 is: 8,816.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,104.13 : 15,324.18 = 6,388.40 : x
  2. Step 2: Convert to fraction form
    11,104.13/15,324.18 = 6,388.40/x
  3. Step 3: Cross multiply
    11,104.13x = 15,324.18 × 6,388.40
  4. Step 4: Simplify right side
    11,104.13x = 97,896,991.51
  5. Step 5: Solve for x
    x = 97,896,991.51/11,104.13
  6. Step 6: Final answer
    x = 8,816.27

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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.