Home / 11,671.31-17,506.98-3,780.45

Finding the Fourth Proportional to 11,671.31, 17,506.98 and 3,780.45

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Solution

The fourth proportional to 11,671.31, 17,506.98 and 3,780.45 is: 5,670.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,671.31 : 17,506.98 = 3,780.45 : x
  2. Step 2: Convert to fraction form
    11,671.31/17,506.98 = 3,780.45/x
  3. Step 3: Cross multiply
    11,671.31x = 17,506.98 × 3,780.45
  4. Step 4: Simplify right side
    11,671.31x = 66,184,262.54
  5. Step 5: Solve for x
    x = 66,184,262.54/11,671.31
  6. Step 6: Final answer
    x = 5,670.68

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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.