Home / 11,402.69-17,104.09-5,155.39

Finding the Fourth Proportional to 11,402.69, 17,104.09 and 5,155.39

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Solution

The fourth proportional to 11,402.69, 17,104.09 and 5,155.39 is: 7,733.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,402.69 : 17,104.09 = 5,155.39 : x
  2. Step 2: Convert to fraction form
    11,402.69/17,104.09 = 5,155.39/x
  3. Step 3: Cross multiply
    11,402.69x = 17,104.09 × 5,155.39
  4. Step 4: Simplify right side
    11,402.69x = 88,178,254.55
  5. Step 5: Solve for x
    x = 88,178,254.55/11,402.69
  6. Step 6: Final answer
    x = 7,733.11

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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.