Home / 14,505.52-21,755.40-7,106.80

Finding the Fourth Proportional to 14,505.52, 21,755.40 and 7,106.80

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Solution

The fourth proportional to 14,505.52, 21,755.40 and 7,106.80 is: 10,658.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,505.52 : 21,755.40 = 7,106.80 : x
  2. Step 2: Convert to fraction form
    14,505.52/21,755.40 = 7,106.80/x
  3. Step 3: Cross multiply
    14,505.52x = 21,755.40 × 7,106.80
  4. Step 4: Simplify right side
    14,505.52x = 154,611,276.72
  5. Step 5: Solve for x
    x = 154,611,276.72/14,505.52
  6. Step 6: Final answer
    x = 10,658.79

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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.