Home / 15,584.60-21,508.78-8,868.92

Finding the Fourth Proportional to 15,584.60, 21,508.78 and 8,868.92

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Solution

The fourth proportional to 15,584.60, 21,508.78 and 8,868.92 is: 12,240.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,584.60 : 21,508.78 = 8,868.92 : x
  2. Step 2: Convert to fraction form
    15,584.60/21,508.78 = 8,868.92/x
  3. Step 3: Cross multiply
    15,584.60x = 21,508.78 × 8,868.92
  4. Step 4: Simplify right side
    15,584.60x = 190,759,649.12
  5. Step 5: Solve for x
    x = 190,759,649.12/15,584.60
  6. Step 6: Final answer
    x = 12,240.27

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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.