Home / 11,963.60-16,507.80-6,658.28

Finding the Fourth Proportional to 11,963.60, 16,507.80 and 6,658.28

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Solution

The fourth proportional to 11,963.60, 16,507.80 and 6,658.28 is: 9,187.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,963.60 : 16,507.80 = 6,658.28 : x
  2. Step 2: Convert to fraction form
    11,963.60/16,507.80 = 6,658.28/x
  3. Step 3: Cross multiply
    11,963.60x = 16,507.80 × 6,658.28
  4. Step 4: Simplify right side
    11,963.60x = 109,913,554.58
  5. Step 5: Solve for x
    x = 109,913,554.58/11,963.60
  6. Step 6: Final answer
    x = 9,187.33

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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.