Home / 6,666.55-9,201.68-4,147.16

Finding the Fourth Proportional to 6,666.55, 9,201.68 and 4,147.16

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Solution

The fourth proportional to 6,666.55, 9,201.68 and 4,147.16 is: 5,724.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,666.55 : 9,201.68 = 4,147.16 : x
  2. Step 2: Convert to fraction form
    6,666.55/9,201.68 = 4,147.16/x
  3. Step 3: Cross multiply
    6,666.55x = 9,201.68 × 4,147.16
  4. Step 4: Simplify right side
    6,666.55x = 38,160,839.23
  5. Step 5: Solve for x
    x = 38,160,839.23/6,666.55
  6. Step 6: Final answer
    x = 5,724.23

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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.