Home / 11,065.80-16,602.34-5,221.64

Finding the Fourth Proportional to 11,065.80, 16,602.34 and 5,221.64

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Solution

The fourth proportional to 11,065.80, 16,602.34 and 5,221.64 is: 7,834.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,065.80 : 16,602.34 = 5,221.64 : x
  2. Step 2: Convert to fraction form
    11,065.80/16,602.34 = 5,221.64/x
  3. Step 3: Cross multiply
    11,065.80x = 16,602.34 × 5,221.64
  4. Step 4: Simplify right side
    11,065.80x = 86,691,442.64
  5. Step 5: Solve for x
    x = 86,691,442.64/11,065.80
  6. Step 6: Final answer
    x = 7,834.18

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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.