Home / 10,140.68-15,199.86-6,629.24

Finding the Fourth Proportional to 10,140.68, 15,199.86 and 6,629.24

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Solution

The fourth proportional to 10,140.68, 15,199.86 and 6,629.24 is: 9,936.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.68 : 15,199.86 = 6,629.24 : x
  2. Step 2: Convert to fraction form
    10,140.68/15,199.86 = 6,629.24/x
  3. Step 3: Cross multiply
    10,140.68x = 15,199.86 × 6,629.24
  4. Step 4: Simplify right side
    10,140.68x = 100,763,519.91
  5. Step 5: Solve for x
    x = 100,763,519.91/10,140.68
  6. Step 6: Final answer
    x = 9,936.56

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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.