Home / 13,202.05-18,206.65-8,959.27

Finding the Fourth Proportional to 13,202.05, 18,206.65 and 8,959.27

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Solution

The fourth proportional to 13,202.05, 18,206.65 and 8,959.27 is: 12,355.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,202.05 : 18,206.65 = 8,959.27 : x
  2. Step 2: Convert to fraction form
    13,202.05/18,206.65 = 8,959.27/x
  3. Step 3: Cross multiply
    13,202.05x = 18,206.65 × 8,959.27
  4. Step 4: Simplify right side
    13,202.05x = 163,118,293.15
  5. Step 5: Solve for x
    x = 163,118,293.15/13,202.05
  6. Step 6: Final answer
    x = 12,355.53

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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.