Home / 11,948.29-16,489.20-6,643.19

Finding the Fourth Proportional to 11,948.29, 16,489.20 and 6,643.19

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Solution

The fourth proportional to 11,948.29, 16,489.20 and 6,643.19 is: 9,167.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.29 : 16,489.20 = 6,643.19 : x
  2. Step 2: Convert to fraction form
    11,948.29/16,489.20 = 6,643.19/x
  3. Step 3: Cross multiply
    11,948.29x = 16,489.20 × 6,643.19
  4. Step 4: Simplify right side
    11,948.29x = 109,540,888.55
  5. Step 5: Solve for x
    x = 109,540,888.55/11,948.29
  6. Step 6: Final answer
    x = 9,167.91

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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.