Home / 11,948.50-16,488.28-6,642.94

Finding the Fourth Proportional to 11,948.50, 16,488.28 and 6,642.94

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Solution

The fourth proportional to 11,948.50, 16,488.28 and 6,642.94 is: 9,166.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.50 : 16,488.28 = 6,642.94 : x
  2. Step 2: Convert to fraction form
    11,948.50/16,488.28 = 6,642.94/x
  3. Step 3: Cross multiply
    11,948.50x = 16,488.28 × 6,642.94
  4. Step 4: Simplify right side
    11,948.50x = 109,530,654.74
  5. Step 5: Solve for x
    x = 109,530,654.74/11,948.50
  6. Step 6: Final answer
    x = 9,166.90

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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.