Home / 11,678.14-16,116.29-6,642.82

Finding the Fourth Proportional to 11,678.14, 16,116.29 and 6,642.82

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Solution

The fourth proportional to 11,678.14, 16,116.29 and 6,642.82 is: 9,167.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,678.14 : 16,116.29 = 6,642.82 : x
  2. Step 2: Convert to fraction form
    11,678.14/16,116.29 = 6,642.82/x
  3. Step 3: Cross multiply
    11,678.14x = 16,116.29 × 6,642.82
  4. Step 4: Simplify right side
    11,678.14x = 107,057,580.32
  5. Step 5: Solve for x
    x = 107,057,580.32/11,678.14
  6. Step 6: Final answer
    x = 9,167.35

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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.