Home / 13,571.18-20,343.80-8,625.50

Finding the Fourth Proportional to 13,571.18, 20,343.80 and 8,625.50

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Solution

The fourth proportional to 13,571.18, 20,343.80 and 8,625.50 is: 12,930.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,571.18 : 20,343.80 = 8,625.50 : x
  2. Step 2: Convert to fraction form
    13,571.18/20,343.80 = 8,625.50/x
  3. Step 3: Cross multiply
    13,571.18x = 20,343.80 × 8,625.50
  4. Step 4: Simplify right side
    13,571.18x = 175,475,446.90
  5. Step 5: Solve for x
    x = 175,475,446.90/13,571.18
  6. Step 6: Final answer
    x = 12,930.01

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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.