Home / 15,415.59-23,123.39-3,728.80

Finding the Fourth Proportional to 15,415.59, 23,123.39 and 3,728.80

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Solution

The fourth proportional to 15,415.59, 23,123.39 and 3,728.80 is: 5,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,415.59 : 23,123.39 = 3,728.80 : x
  2. Step 2: Convert to fraction form
    15,415.59/23,123.39 = 3,728.80/x
  3. Step 3: Cross multiply
    15,415.59x = 23,123.39 × 3,728.80
  4. Step 4: Simplify right side
    15,415.59x = 86,222,496.63
  5. Step 5: Solve for x
    x = 86,222,496.63/15,415.59
  6. Step 6: Final answer
    x = 5,593.20

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Similar ratio
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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.