Home / 11,656.40-16,084.44-6,618.80

Finding the Fourth Proportional to 11,656.40, 16,084.44 and 6,618.80

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Solution

The fourth proportional to 11,656.40, 16,084.44 and 6,618.80 is: 9,133.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,656.40 : 16,084.44 = 6,618.80 : x
  2. Step 2: Convert to fraction form
    11,656.40/16,084.44 = 6,618.80/x
  3. Step 3: Cross multiply
    11,656.40x = 16,084.44 × 6,618.80
  4. Step 4: Simplify right side
    11,656.40x = 106,459,691.47
  5. Step 5: Solve for x
    x = 106,459,691.47/11,656.40
  6. Step 6: Final answer
    x = 9,133.15

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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.