Home / 11,211.75-15,466.28-6,671.21

Finding the Fourth Proportional to 11,211.75, 15,466.28 and 6,671.21

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Solution

The fourth proportional to 11,211.75, 15,466.28 and 6,671.21 is: 9,202.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,211.75 : 15,466.28 = 6,671.21 : x
  2. Step 2: Convert to fraction form
    11,211.75/15,466.28 = 6,671.21/x
  3. Step 3: Cross multiply
    11,211.75x = 15,466.28 × 6,671.21
  4. Step 4: Simplify right side
    11,211.75x = 103,178,834.40
  5. Step 5: Solve for x
    x = 103,178,834.40/11,211.75
  6. Step 6: Final answer
    x = 9,202.74

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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.