Home / 7,528.55-10,388.99-4,171.16

Finding the Fourth Proportional to 7,528.55, 10,388.99 and 4,171.16

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Solution

The fourth proportional to 7,528.55, 10,388.99 and 4,171.16 is: 5,755.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,528.55 : 10,388.99 = 4,171.16 : x
  2. Step 2: Convert to fraction form
    7,528.55/10,388.99 = 4,171.16/x
  3. Step 3: Cross multiply
    7,528.55x = 10,388.99 × 4,171.16
  4. Step 4: Simplify right side
    7,528.55x = 43,334,105.69
  5. Step 5: Solve for x
    x = 43,334,105.69/7,528.55
  6. Step 6: Final answer
    x = 5,755.97

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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.