Home / 10,083.69-15,125.45-2,688.75

Finding the Fourth Proportional to 10,083.69, 15,125.45 and 2,688.75

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Solution

The fourth proportional to 10,083.69, 15,125.45 and 2,688.75 is: 4,033.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,083.69 : 15,125.45 = 2,688.75 : x
  2. Step 2: Convert to fraction form
    10,083.69/15,125.45 = 2,688.75/x
  3. Step 3: Cross multiply
    10,083.69x = 15,125.45 × 2,688.75
  4. Step 4: Simplify right side
    10,083.69x = 40,668,540.24
  5. Step 5: Solve for x
    x = 40,668,540.24/10,083.69
  6. Step 6: Final answer
    x = 4,033.10

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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.