Home / 11,225.10-15,490.46-6,189.80

Finding the Fourth Proportional to 11,225.10, 15,490.46 and 6,189.80

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Solution

The fourth proportional to 11,225.10, 15,490.46 and 6,189.80 is: 8,541.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,225.10 : 15,490.46 = 6,189.80 : x
  2. Step 2: Convert to fraction form
    11,225.10/15,490.46 = 6,189.80/x
  3. Step 3: Cross multiply
    11,225.10x = 15,490.46 × 6,189.80
  4. Step 4: Simplify right side
    11,225.10x = 95,882,787.33
  5. Step 5: Solve for x
    x = 95,882,787.33/11,225.10
  6. Step 6: Final answer
    x = 8,541.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.