Home / 11,829.20-16,326.24-7,116.08

Finding the Fourth Proportional to 11,829.20, 16,326.24 and 7,116.08

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Solution

The fourth proportional to 11,829.20, 16,326.24 and 7,116.08 is: 9,821.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,829.20 : 16,326.24 = 7,116.08 : x
  2. Step 2: Convert to fraction form
    11,829.20/16,326.24 = 7,116.08/x
  3. Step 3: Cross multiply
    11,829.20x = 16,326.24 × 7,116.08
  4. Step 4: Simplify right side
    11,829.20x = 116,178,829.94
  5. Step 5: Solve for x
    x = 116,178,829.94/11,829.20
  6. Step 6: Final answer
    x = 9,821.36

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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.