Home / 14,878.97-20,532.80-8,591.21

Finding the Fourth Proportional to 14,878.97, 20,532.80 and 8,591.21

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Solution

The fourth proportional to 14,878.97, 20,532.80 and 8,591.21 is: 11,855.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,878.97 : 20,532.80 = 8,591.21 : x
  2. Step 2: Convert to fraction form
    14,878.97/20,532.80 = 8,591.21/x
  3. Step 3: Cross multiply
    14,878.97x = 20,532.80 × 8,591.21
  4. Step 4: Simplify right side
    14,878.97x = 176,401,596.69
  5. Step 5: Solve for x
    x = 176,401,596.69/14,878.97
  6. Step 6: Final answer
    x = 11,855.77

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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.