Home / 15,877.04-21,910.24-8,706.92

Finding the Fourth Proportional to 15,877.04, 21,910.24 and 8,706.92

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Solution

The fourth proportional to 15,877.04, 21,910.24 and 8,706.92 is: 12,015.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,877.04 : 21,910.24 = 8,706.92 : x
  2. Step 2: Convert to fraction form
    15,877.04/21,910.24 = 8,706.92/x
  3. Step 3: Cross multiply
    15,877.04x = 21,910.24 × 8,706.92
  4. Step 4: Simplify right side
    15,877.04x = 190,770,706.86
  5. Step 5: Solve for x
    x = 190,770,706.86/15,877.04
  6. Step 6: Final answer
    x = 12,015.51

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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.