Home / 15,563.18-23,347.20-5,172.50

Finding the Fourth Proportional to 15,563.18, 23,347.20 and 5,172.50

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Solution

The fourth proportional to 15,563.18, 23,347.20 and 5,172.50 is: 7,759.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,563.18 : 23,347.20 = 5,172.50 : x
  2. Step 2: Convert to fraction form
    15,563.18/23,347.20 = 5,172.50/x
  3. Step 3: Cross multiply
    15,563.18x = 23,347.20 × 5,172.50
  4. Step 4: Simplify right side
    15,563.18x = 120,763,392
  5. Step 5: Solve for x
    x = 120,763,392/15,563.18
  6. Step 6: Final answer
    x = 7,759.56

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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.