Home / 15,200.40-22,800.60-4,812.15

Finding the Fourth Proportional to 15,200.40, 22,800.60 and 4,812.15

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Solution

The fourth proportional to 15,200.40, 22,800.60 and 4,812.15 is: 7,218.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,200.40 : 22,800.60 = 4,812.15 : x
  2. Step 2: Convert to fraction form
    15,200.40/22,800.60 = 4,812.15/x
  3. Step 3: Cross multiply
    15,200.40x = 22,800.60 × 4,812.15
  4. Step 4: Simplify right side
    15,200.40x = 109,719,907.29
  5. Step 5: Solve for x
    x = 109,719,907.29/15,200.40
  6. Step 6: Final answer
    x = 7,218.23

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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.