Home / 15,116.88-20,854.56-8,826.48

Finding the Fourth Proportional to 15,116.88, 20,854.56 and 8,826.48

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Solution

The fourth proportional to 15,116.88, 20,854.56 and 8,826.48 is: 12,176.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,116.88 : 20,854.56 = 8,826.48 : x
  2. Step 2: Convert to fraction form
    15,116.88/20,854.56 = 8,826.48/x
  3. Step 3: Cross multiply
    15,116.88x = 20,854.56 × 8,826.48
  4. Step 4: Simplify right side
    15,116.88x = 184,072,356.75
  5. Step 5: Solve for x
    x = 184,072,356.75/15,116.88
  6. Step 6: Final answer
    x = 12,176.61

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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.