Home / 15,072.48-20,799.00-8,357.85

Finding the Fourth Proportional to 15,072.48, 20,799.00 and 8,357.85

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Solution

The fourth proportional to 15,072.48, 20,799.00 and 8,357.85 is: 11,533.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,072.48 : 20,799.00 = 8,357.85 : x
  2. Step 2: Convert to fraction form
    15,072.48/20,799.00 = 8,357.85/x
  3. Step 3: Cross multiply
    15,072.48x = 20,799.00 × 8,357.85
  4. Step 4: Simplify right side
    15,072.48x = 173,835,033.40
  5. Step 5: Solve for x
    x = 173,835,033.40/15,072.48
  6. Step 6: Final answer
    x = 11,533.28

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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.