Home / 7,174.17-9,909.54-5,485.32

Finding the Fourth Proportional to 7,174.17, 9,909.54 and 5,485.32

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Solution

The fourth proportional to 7,174.17, 9,909.54 and 5,485.32 is: 7,576.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,174.17 : 9,909.54 = 5,485.32 : x
  2. Step 2: Convert to fraction form
    7,174.17/9,909.54 = 5,485.32/x
  3. Step 3: Cross multiply
    7,174.17x = 9,909.54 × 5,485.32
  4. Step 4: Simplify right side
    7,174.17x = 54,356,997.95
  5. Step 5: Solve for x
    x = 54,356,997.95/7,174.17
  6. Step 6: Final answer
    x = 7,576.76

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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.