Home / 11,862.72-16,369.44-6,557.28

Finding the Fourth Proportional to 11,862.72, 16,369.44 and 6,557.28

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Solution

The fourth proportional to 11,862.72, 16,369.44 and 6,557.28 is: 9,048.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,862.72 : 16,369.44 = 6,557.28 : x
  2. Step 2: Convert to fraction form
    11,862.72/16,369.44 = 6,557.28/x
  3. Step 3: Cross multiply
    11,862.72x = 16,369.44 × 6,557.28
  4. Step 4: Simplify right side
    11,862.72x = 107,339,001.52
  5. Step 5: Solve for x
    x = 107,339,001.52/11,862.72
  6. Step 6: Final answer
    x = 9,048.43

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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.