Home / 11,257.02-15,524.19-8,904.78

Finding the Fourth Proportional to 11,257.02, 15,524.19 and 8,904.78

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Solution

The fourth proportional to 11,257.02, 15,524.19 and 8,904.78 is: 12,280.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,257.02 : 15,524.19 = 8,904.78 : x
  2. Step 2: Convert to fraction form
    11,257.02/15,524.19 = 8,904.78/x
  3. Step 3: Cross multiply
    11,257.02x = 15,524.19 × 8,904.78
  4. Step 4: Simplify right side
    11,257.02x = 138,239,496.63
  5. Step 5: Solve for x
    x = 138,239,496.63/11,257.02
  6. Step 6: Final answer
    x = 12,280.29

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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.