Home / 15,122.40-22,694.40-8,541.60

Finding the Fourth Proportional to 15,122.40, 22,694.40 and 8,541.60

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Solution

The fourth proportional to 15,122.40, 22,694.40 and 8,541.60 is: 12,818.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,122.40 : 22,694.40 = 8,541.60 : x
  2. Step 2: Convert to fraction form
    15,122.40/22,694.40 = 8,541.60/x
  3. Step 3: Cross multiply
    15,122.40x = 22,694.40 × 8,541.60
  4. Step 4: Simplify right side
    15,122.40x = 193,846,487.04
  5. Step 5: Solve for x
    x = 193,846,487.04/15,122.40
  6. Step 6: Final answer
    x = 12,818.50

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1.5x scale

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.