Home / 10,889.13-15,025.44-6,172.50

Finding the Fourth Proportional to 10,889.13, 15,025.44 and 6,172.50

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Solution

The fourth proportional to 10,889.13, 15,025.44 and 6,172.50 is: 8,517.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.13 : 15,025.44 = 6,172.50 : x
  2. Step 2: Convert to fraction form
    10,889.13/15,025.44 = 6,172.50/x
  3. Step 3: Cross multiply
    10,889.13x = 15,025.44 × 6,172.50
  4. Step 4: Simplify right side
    10,889.13x = 92,744,528.40
  5. Step 5: Solve for x
    x = 92,744,528.40/10,889.13
  6. Step 6: Final answer
    x = 8,517.17

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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.