Home / 8,869.80-12,240.12-4,890.92

Finding the Fourth Proportional to 8,869.80, 12,240.12 and 4,890.92

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Solution

The fourth proportional to 8,869.80, 12,240.12 and 4,890.92 is: 6,749.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.80 : 12,240.12 = 4,890.92 : x
  2. Step 2: Convert to fraction form
    8,869.80/12,240.12 = 4,890.92/x
  3. Step 3: Cross multiply
    8,869.80x = 12,240.12 × 4,890.92
  4. Step 4: Simplify right side
    8,869.80x = 59,865,496.65
  5. Step 5: Solve for x
    x = 59,865,496.65/8,869.80
  6. Step 6: Final answer
    x = 6,749.36

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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.