Home / 11,886.31-17,824.40-4,861.45

Finding the Fourth Proportional to 11,886.31, 17,824.40 and 4,861.45

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Solution

The fourth proportional to 11,886.31, 17,824.40 and 4,861.45 is: 7,290.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,886.31 : 17,824.40 = 4,861.45 : x
  2. Step 2: Convert to fraction form
    11,886.31/17,824.40 = 4,861.45/x
  3. Step 3: Cross multiply
    11,886.31x = 17,824.40 × 4,861.45
  4. Step 4: Simplify right side
    11,886.31x = 86,652,315.95
  5. Step 5: Solve for x
    x = 86,652,315.95/11,886.31
  6. Step 6: Final answer
    x = 7,290.10

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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.