Home / 10,089.12-15,137.46-4,540.80

Finding the Fourth Proportional to 10,089.12, 15,137.46 and 4,540.80

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Solution

The fourth proportional to 10,089.12, 15,137.46 and 4,540.80 is: 6,812.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,089.12 : 15,137.46 = 4,540.80 : x
  2. Step 2: Convert to fraction form
    10,089.12/15,137.46 = 4,540.80/x
  3. Step 3: Cross multiply
    10,089.12x = 15,137.46 × 4,540.80
  4. Step 4: Simplify right side
    10,089.12x = 68,736,178.37
  5. Step 5: Solve for x
    x = 68,736,178.37/10,089.12
  6. Step 6: Final answer
    x = 6,812.90

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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.