Home / 15,557.97-21,469.95-8,484.38

Finding the Fourth Proportional to 15,557.97, 21,469.95 and 8,484.38

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Solution

The fourth proportional to 15,557.97, 21,469.95 and 8,484.38 is: 11,708.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,557.97 : 21,469.95 = 8,484.38 : x
  2. Step 2: Convert to fraction form
    15,557.97/21,469.95 = 8,484.38/x
  3. Step 3: Cross multiply
    15,557.97x = 21,469.95 × 8,484.38
  4. Step 4: Simplify right side
    15,557.97x = 182,159,107.03
  5. Step 5: Solve for x
    x = 182,159,107.03/15,557.97
  6. Step 6: Final answer
    x = 11,708.41

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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.