Home / 9,889.11-13,646.73-5,412.85

Finding the Fourth Proportional to 9,889.11, 13,646.73 and 5,412.85

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Solution

The fourth proportional to 9,889.11, 13,646.73 and 5,412.85 is: 7,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,889.11 : 13,646.73 = 5,412.85 : x
  2. Step 2: Convert to fraction form
    9,889.11/13,646.73 = 5,412.85/x
  3. Step 3: Cross multiply
    9,889.11x = 13,646.73 × 5,412.85
  4. Step 4: Simplify right side
    9,889.11x = 73,867,702.48
  5. Step 5: Solve for x
    x = 73,867,702.48/9,889.11
  6. Step 6: Final answer
    x = 7,469.60

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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.