Home / 11,199.36-15,465.96-8,400

Finding the Fourth Proportional to 11,199.36, 15,465.96 and 8,400

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Solution

The fourth proportional to 11,199.36, 15,465.96 and 8,400 is: 11,600.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,199.36 : 15,465.96 = 8,400 : x
  2. Step 2: Convert to fraction form
    11,199.36/15,465.96 = 8,400/x
  3. Step 3: Cross multiply
    11,199.36x = 15,465.96 × 8,400
  4. Step 4: Simplify right side
    11,199.36x = 129,914,064
  5. Step 5: Solve for x
    x = 129,914,064/11,199.36
  6. Step 6: Final answer
    x = 11,600.13

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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.