Home / 12,200.30-18,319.65-7,016.30

Finding the Fourth Proportional to 12,200.30, 18,319.65 and 7,016.30

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Solution

The fourth proportional to 12,200.30, 18,319.65 and 7,016.30 is: 10,535.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,200.30 : 18,319.65 = 7,016.30 : x
  2. Step 2: Convert to fraction form
    12,200.30/18,319.65 = 7,016.30/x
  3. Step 3: Cross multiply
    12,200.30x = 18,319.65 × 7,016.30
  4. Step 4: Simplify right side
    12,200.30x = 128,536,160.30
  5. Step 5: Solve for x
    x = 128,536,160.30/12,200.30
  6. Step 6: Final answer
    x = 10,535.49

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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.