Home / 11,949.24-16,488.39-6,643

Finding the Fourth Proportional to 11,949.24, 16,488.39 and 6,643

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Solution

The fourth proportional to 11,949.24, 16,488.39 and 6,643 is: 9,166.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,949.24 : 16,488.39 = 6,643 : x
  2. Step 2: Convert to fraction form
    11,949.24/16,488.39 = 6,643/x
  3. Step 3: Cross multiply
    11,949.24x = 16,488.39 × 6,643
  4. Step 4: Simplify right side
    11,949.24x = 109,532,374.77
  5. Step 5: Solve for x
    x = 109,532,374.77/11,949.24
  6. Step 6: Final answer
    x = 9,166.47

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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.