Home / 11,948.83-16,489.29-6,643.60

Finding the Fourth Proportional to 11,948.83, 16,489.29 and 6,643.60

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Solution

The fourth proportional to 11,948.83, 16,489.29 and 6,643.60 is: 9,168.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.83 : 16,489.29 = 6,643.60 : x
  2. Step 2: Convert to fraction form
    11,948.83/16,489.29 = 6,643.60/x
  3. Step 3: Cross multiply
    11,948.83x = 16,489.29 × 6,643.60
  4. Step 4: Simplify right side
    11,948.83x = 109,548,181.21
  5. Step 5: Solve for x
    x = 109,548,181.21/11,948.83
  6. Step 6: Final answer
    x = 9,168.11

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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.