Home / 10,140.36-15,198.12-5,761.50

Finding the Fourth Proportional to 10,140.36, 15,198.12 and 5,761.50

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Solution

The fourth proportional to 10,140.36, 15,198.12 and 5,761.50 is: 8,635.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.36 : 15,198.12 = 5,761.50 : x
  2. Step 2: Convert to fraction form
    10,140.36/15,198.12 = 5,761.50/x
  3. Step 3: Cross multiply
    10,140.36x = 15,198.12 × 5,761.50
  4. Step 4: Simplify right side
    10,140.36x = 87,563,968.38
  5. Step 5: Solve for x
    x = 87,563,968.38/10,140.36
  6. Step 6: Final answer
    x = 8,635.19

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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.