Home / 11,948.54-16,489.05-6,643.85

Finding the Fourth Proportional to 11,948.54, 16,489.05 and 6,643.85

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Solution

The fourth proportional to 11,948.54, 16,489.05 and 6,643.85 is: 9,168.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.54 : 16,489.05 = 6,643.85 : x
  2. Step 2: Convert to fraction form
    11,948.54/16,489.05 = 6,643.85/x
  3. Step 3: Cross multiply
    11,948.54x = 16,489.05 × 6,643.85
  4. Step 4: Simplify right side
    11,948.54x = 109,550,774.84
  5. Step 5: Solve for x
    x = 109,550,774.84/11,948.54
  6. Step 6: Final answer
    x = 9,168.55

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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.