Home / 15,122.20-22,688.70-6,359.80

Finding the Fourth Proportional to 15,122.20, 22,688.70 and 6,359.80

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Solution

The fourth proportional to 15,122.20, 22,688.70 and 6,359.80 is: 9,541.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,122.20 : 22,688.70 = 6,359.80 : x
  2. Step 2: Convert to fraction form
    15,122.20/22,688.70 = 6,359.80/x
  3. Step 3: Cross multiply
    15,122.20x = 22,688.70 × 6,359.80
  4. Step 4: Simplify right side
    15,122.20x = 144,295,594.26
  5. Step 5: Solve for x
    x = 144,295,594.26/15,122.20
  6. Step 6: Final answer
    x = 9,541.97

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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.