Home / 11,123.38-16,690.74-6,962.68

Finding the Fourth Proportional to 11,123.38, 16,690.74 and 6,962.68

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Solution

The fourth proportional to 11,123.38, 16,690.74 and 6,962.68 is: 10,447.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,123.38 : 16,690.74 = 6,962.68 : x
  2. Step 2: Convert to fraction form
    11,123.38/16,690.74 = 6,962.68/x
  3. Step 3: Cross multiply
    11,123.38x = 16,690.74 × 6,962.68
  4. Step 4: Simplify right side
    11,123.38x = 116,212,281.58
  5. Step 5: Solve for x
    x = 116,212,281.58/11,123.38
  6. Step 6: Final answer
    x = 10,447.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.