Home / 11,671.18-17,506.76-3,780.28

Finding the Fourth Proportional to 11,671.18, 17,506.76 and 3,780.28

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Solution

The fourth proportional to 11,671.18, 17,506.76 and 3,780.28 is: 5,670.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,671.18 : 17,506.76 = 3,780.28 : x
  2. Step 2: Convert to fraction form
    11,671.18/17,506.76 = 3,780.28/x
  3. Step 3: Cross multiply
    11,671.18x = 17,506.76 × 3,780.28
  4. Step 4: Simplify right side
    11,671.18x = 66,180,457.67
  5. Step 5: Solve for x
    x = 66,180,457.67/11,671.18
  6. Step 6: Final answer
    x = 5,670.42

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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.