Home / 10,920.66-15,071.85-6,205.38

Finding the Fourth Proportional to 10,920.66, 15,071.85 and 6,205.38

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Solution

The fourth proportional to 10,920.66, 15,071.85 and 6,205.38 is: 8,564.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,920.66 : 15,071.85 = 6,205.38 : x
  2. Step 2: Convert to fraction form
    10,920.66/15,071.85 = 6,205.38/x
  3. Step 3: Cross multiply
    10,920.66x = 15,071.85 × 6,205.38
  4. Step 4: Simplify right side
    10,920.66x = 93,526,556.55
  5. Step 5: Solve for x
    x = 93,526,556.55/10,920.66
  6. Step 6: Final answer
    x = 8,564.19

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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.