Home / 15,914.36-21,961.50-8,840.72

Finding the Fourth Proportional to 15,914.36, 21,961.50 and 8,840.72

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Solution

The fourth proportional to 15,914.36, 21,961.50 and 8,840.72 is: 12,200.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,914.36 : 21,961.50 = 8,840.72 : x
  2. Step 2: Convert to fraction form
    15,914.36/21,961.50 = 8,840.72/x
  3. Step 3: Cross multiply
    15,914.36x = 21,961.50 × 8,840.72
  4. Step 4: Simplify right side
    15,914.36x = 194,155,472.28
  5. Step 5: Solve for x
    x = 194,155,472.28/15,914.36
  6. Step 6: Final answer
    x = 12,200.02

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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.