Home / 11,428.19-17,133.19-7,503.88

Finding the Fourth Proportional to 11,428.19, 17,133.19 and 7,503.88

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Solution

The fourth proportional to 11,428.19, 17,133.19 and 7,503.88 is: 11,249.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.19 : 17,133.19 = 7,503.88 : x
  2. Step 2: Convert to fraction form
    11,428.19/17,133.19 = 7,503.88/x
  3. Step 3: Cross multiply
    11,428.19x = 17,133.19 × 7,503.88
  4. Step 4: Simplify right side
    11,428.19x = 128,565,401.78
  5. Step 5: Solve for x
    x = 128,565,401.78/11,428.19
  6. Step 6: Final answer
    x = 11,249.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.