Home / 15,938.88-23,886.40-8,131.28

Finding the Fourth Proportional to 15,938.88, 23,886.40 and 8,131.28

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Solution

The fourth proportional to 15,938.88, 23,886.40 and 8,131.28 is: 12,185.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,938.88 : 23,886.40 = 8,131.28 : x
  2. Step 2: Convert to fraction form
    15,938.88/23,886.40 = 8,131.28/x
  3. Step 3: Cross multiply
    15,938.88x = 23,886.40 × 8,131.28
  4. Step 4: Simplify right side
    15,938.88x = 194,227,006.59
  5. Step 5: Solve for x
    x = 194,227,006.59/15,938.88
  6. Step 6: Final answer
    x = 12,185.74

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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.