Home / 10,628.38-15,945-5,083.12

Finding the Fourth Proportional to 10,628.38, 15,945 and 5,083.12

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Solution

The fourth proportional to 10,628.38, 15,945 and 5,083.12 is: 7,625.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,628.38 : 15,945 = 5,083.12 : x
  2. Step 2: Convert to fraction form
    10,628.38/15,945 = 5,083.12/x
  3. Step 3: Cross multiply
    10,628.38x = 15,945 × 5,083.12
  4. Step 4: Simplify right side
    10,628.38x = 81,050,348.40
  5. Step 5: Solve for x
    x = 81,050,348.40/10,628.38
  6. Step 6: Final answer
    x = 7,625.84

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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.