Home / 11,215.60-16,859.85-9,611.80

Finding the Fourth Proportional to 11,215.60, 16,859.85 and 9,611.80

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Solution

The fourth proportional to 11,215.60, 16,859.85 and 9,611.80 is: 14,448.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.60 : 16,859.85 = 9,611.80 : x
  2. Step 2: Convert to fraction form
    11,215.60/16,859.85 = 9,611.80/x
  3. Step 3: Cross multiply
    11,215.60x = 16,859.85 × 9,611.80
  4. Step 4: Simplify right side
    11,215.60x = 162,053,506.23
  5. Step 5: Solve for x
    x = 162,053,506.23/11,215.60
  6. Step 6: Final answer
    x = 14,448.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.