Home / 6,618.24-9,130.26-4,099.68

Finding the Fourth Proportional to 6,618.24, 9,130.26 and 4,099.68

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Solution

The fourth proportional to 6,618.24, 9,130.26 and 4,099.68 is: 5,655.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618.24 : 9,130.26 = 4,099.68 : x
  2. Step 2: Convert to fraction form
    6,618.24/9,130.26 = 4,099.68/x
  3. Step 3: Cross multiply
    6,618.24x = 9,130.26 × 4,099.68
  4. Step 4: Simplify right side
    6,618.24x = 37,431,144.32
  5. Step 5: Solve for x
    x = 37,431,144.32/6,618.24
  6. Step 6: Final answer
    x = 5,655.76

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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.