Home / 9,163.52-12,647.52-5,439.68

Finding the Fourth Proportional to 9,163.52, 12,647.52 and 5,439.68

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Solution

The fourth proportional to 9,163.52, 12,647.52 and 5,439.68 is: 7,507.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,163.52 : 12,647.52 = 5,439.68 : x
  2. Step 2: Convert to fraction form
    9,163.52/12,647.52 = 5,439.68/x
  3. Step 3: Cross multiply
    9,163.52x = 12,647.52 × 5,439.68
  4. Step 4: Simplify right side
    9,163.52x = 68,798,461.59
  5. Step 5: Solve for x
    x = 68,798,461.59/9,163.52
  6. Step 6: Final answer
    x = 7,507.86

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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.