Home / 15,210.20-22,815.30-4,118.60

Finding the Fourth Proportional to 15,210.20, 22,815.30 and 4,118.60

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Solution

The fourth proportional to 15,210.20, 22,815.30 and 4,118.60 is: 6,177.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,210.20 : 22,815.30 = 4,118.60 : x
  2. Step 2: Convert to fraction form
    15,210.20/22,815.30 = 4,118.60/x
  3. Step 3: Cross multiply
    15,210.20x = 22,815.30 × 4,118.60
  4. Step 4: Simplify right side
    15,210.20x = 93,967,094.58
  5. Step 5: Solve for x
    x = 93,967,094.58/15,210.20
  6. Step 6: Final answer
    x = 6,177.90

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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.