Home / 11,277.63-15,564.29-8,135.64

Finding the Fourth Proportional to 11,277.63, 15,564.29 and 8,135.64

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Solution

The fourth proportional to 11,277.63, 15,564.29 and 8,135.64 is: 11,228.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,277.63 : 15,564.29 = 8,135.64 : x
  2. Step 2: Convert to fraction form
    11,277.63/15,564.29 = 8,135.64/x
  3. Step 3: Cross multiply
    11,277.63x = 15,564.29 × 8,135.64
  4. Step 4: Simplify right side
    11,277.63x = 126,625,419.62
  5. Step 5: Solve for x
    x = 126,625,419.62/11,277.63
  6. Step 6: Final answer
    x = 11,228.02

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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.