Home / 15,236.19-21,025.82-8,862.90

Finding the Fourth Proportional to 15,236.19, 21,025.82 and 8,862.90

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Solution

The fourth proportional to 15,236.19, 21,025.82 and 8,862.90 is: 12,230.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,236.19 : 21,025.82 = 8,862.90 : x
  2. Step 2: Convert to fraction form
    15,236.19/21,025.82 = 8,862.90/x
  3. Step 3: Cross multiply
    15,236.19x = 21,025.82 × 8,862.90
  4. Step 4: Simplify right side
    15,236.19x = 186,349,740.08
  5. Step 5: Solve for x
    x = 186,349,740.08/15,236.19
  6. Step 6: Final answer
    x = 12,230.73

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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.