Home / 11,948.32-16,488.68-6,643.64

Finding the Fourth Proportional to 11,948.32, 16,488.68 and 6,643.64

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Solution

The fourth proportional to 11,948.32, 16,488.68 and 6,643.64 is: 9,168.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.32 : 16,488.68 = 6,643.64 : x
  2. Step 2: Convert to fraction form
    11,948.32/16,488.68 = 6,643.64/x
  3. Step 3: Cross multiply
    11,948.32x = 16,488.68 × 6,643.64
  4. Step 4: Simplify right side
    11,948.32x = 109,544,854.00
  5. Step 5: Solve for x
    x = 109,544,854.00/11,948.32
  6. Step 6: Final answer
    x = 9,168.22

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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.