Home / 11,948.18-16,489.04-6,644.70

Finding the Fourth Proportional to 11,948.18, 16,489.04 and 6,644.70

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Solution

The fourth proportional to 11,948.18, 16,489.04 and 6,644.70 is: 9,169.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.18 : 16,489.04 = 6,644.70 : x
  2. Step 2: Convert to fraction form
    11,948.18/16,489.04 = 6,644.70/x
  3. Step 3: Cross multiply
    11,948.18x = 16,489.04 × 6,644.70
  4. Step 4: Simplify right side
    11,948.18x = 109,564,690.86
  5. Step 5: Solve for x
    x = 109,564,690.86/11,948.18
  6. Step 6: Final answer
    x = 9,169.99

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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.