Home / 15,826.50-21,839.94-8,656.26

Finding the Fourth Proportional to 15,826.50, 21,839.94 and 8,656.26

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Solution

The fourth proportional to 15,826.50, 21,839.94 and 8,656.26 is: 11,945.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,826.50 : 21,839.94 = 8,656.26 : x
  2. Step 2: Convert to fraction form
    15,826.50/21,839.94 = 8,656.26/x
  3. Step 3: Cross multiply
    15,826.50x = 21,839.94 × 8,656.26
  4. Step 4: Simplify right side
    15,826.50x = 189,052,199.02
  5. Step 5: Solve for x
    x = 189,052,199.02/15,826.50
  6. Step 6: Final answer
    x = 11,945.29

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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.