Home / 15,557.58-21,469.41-8,483.97

Finding the Fourth Proportional to 15,557.58, 21,469.41 and 8,483.97

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Solution

The fourth proportional to 15,557.58, 21,469.41 and 8,483.97 is: 11,707.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,557.58 : 21,469.41 = 8,483.97 : x
  2. Step 2: Convert to fraction form
    15,557.58/21,469.41 = 8,483.97/x
  3. Step 3: Cross multiply
    15,557.58x = 21,469.41 × 8,483.97
  4. Step 4: Simplify right side
    15,557.58x = 182,145,830.36
  5. Step 5: Solve for x
    x = 182,145,830.36/15,557.58
  6. Step 6: Final answer
    x = 11,707.85

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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.