Home / 8,869.26-12,240.31-4,890.75

Finding the Fourth Proportional to 8,869.26, 12,240.31 and 4,890.75

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Solution

The fourth proportional to 8,869.26, 12,240.31 and 4,890.75 is: 6,749.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.26 : 12,240.31 = 4,890.75 : x
  2. Step 2: Convert to fraction form
    8,869.26/12,240.31 = 4,890.75/x
  3. Step 3: Cross multiply
    8,869.26x = 12,240.31 × 4,890.75
  4. Step 4: Simplify right side
    8,869.26x = 59,864,296.13
  5. Step 5: Solve for x
    x = 59,864,296.13/8,869.26
  6. Step 6: Final answer
    x = 6,749.64

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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.