Home / 13,999.41-19,321.83-8,031.15

Finding the Fourth Proportional to 13,999.41, 19,321.83 and 8,031.15

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Solution

The fourth proportional to 13,999.41, 19,321.83 and 8,031.15 is: 11,084.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999.41 : 19,321.83 = 8,031.15 : x
  2. Step 2: Convert to fraction form
    13,999.41/19,321.83 = 8,031.15/x
  3. Step 3: Cross multiply
    13,999.41x = 19,321.83 × 8,031.15
  4. Step 4: Simplify right side
    13,999.41x = 155,176,515.00
  5. Step 5: Solve for x
    x = 155,176,515.00/13,999.41
  6. Step 6: Final answer
    x = 11,084.50

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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.