Home / 15,072.27-20,800.24-8,357.50

Finding the Fourth Proportional to 15,072.27, 20,800.24 and 8,357.50

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Solution

The fourth proportional to 15,072.27, 20,800.24 and 8,357.50 is: 11,533.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,072.27 : 20,800.24 = 8,357.50 : x
  2. Step 2: Convert to fraction form
    15,072.27/20,800.24 = 8,357.50/x
  3. Step 3: Cross multiply
    15,072.27x = 20,800.24 × 8,357.50
  4. Step 4: Simplify right side
    15,072.27x = 173,838,005.80
  5. Step 5: Solve for x
    x = 173,838,005.80/15,072.27
  6. Step 6: Final answer
    x = 11,533.63

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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.