Home / 11,951.30-16,492.74-6,645.80

Finding the Fourth Proportional to 11,951.30, 16,492.74 and 6,645.80

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Solution

The fourth proportional to 11,951.30, 16,492.74 and 6,645.80 is: 9,171.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,951.30 : 16,492.74 = 6,645.80 : x
  2. Step 2: Convert to fraction form
    11,951.30/16,492.74 = 6,645.80/x
  3. Step 3: Cross multiply
    11,951.30x = 16,492.74 × 6,645.80
  4. Step 4: Simplify right side
    11,951.30x = 109,607,451.49
  5. Step 5: Solve for x
    x = 109,607,451.49/11,951.30
  6. Step 6: Final answer
    x = 9,171.17

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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.