Home / 15,163.56-20,930.40-8,877.96

Finding the Fourth Proportional to 15,163.56, 20,930.40 and 8,877.96

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Solution

The fourth proportional to 15,163.56, 20,930.40 and 8,877.96 is: 12,254.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,163.56 : 20,930.40 = 8,877.96 : x
  2. Step 2: Convert to fraction form
    15,163.56/20,930.40 = 8,877.96/x
  3. Step 3: Cross multiply
    15,163.56x = 20,930.40 × 8,877.96
  4. Step 4: Simplify right side
    15,163.56x = 185,819,253.98
  5. Step 5: Solve for x
    x = 185,819,253.98/15,163.56
  6. Step 6: Final answer
    x = 12,254.33

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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.