Home / 11,013.20-16,519.80-8,826.20

Finding the Fourth Proportional to 11,013.20, 16,519.80 and 8,826.20

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Solution

The fourth proportional to 11,013.20, 16,519.80 and 8,826.20 is: 13,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,013.20 : 16,519.80 = 8,826.20 : x
  2. Step 2: Convert to fraction form
    11,013.20/16,519.80 = 8,826.20/x
  3. Step 3: Cross multiply
    11,013.20x = 16,519.80 × 8,826.20
  4. Step 4: Simplify right side
    11,013.20x = 145,807,058.76
  5. Step 5: Solve for x
    x = 145,807,058.76/11,013.20
  6. Step 6: Final answer
    x = 13,239.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.