Home / 6,762.78-9,319.35-5,171.24

Finding the Fourth Proportional to 6,762.78, 9,319.35 and 5,171.24

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Solution

The fourth proportional to 6,762.78, 9,319.35 and 5,171.24 is: 7,126.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,762.78 : 9,319.35 = 5,171.24 : x
  2. Step 2: Convert to fraction form
    6,762.78/9,319.35 = 5,171.24/x
  3. Step 3: Cross multiply
    6,762.78x = 9,319.35 × 5,171.24
  4. Step 4: Simplify right side
    6,762.78x = 48,192,548.90
  5. Step 5: Solve for x
    x = 48,192,548.90/6,762.78
  6. Step 6: Final answer
    x = 7,126.14

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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.