Home / 12,636.02-18,945.92-5,245.58

Finding the Fourth Proportional to 12,636.02, 18,945.92 and 5,245.58

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Solution

The fourth proportional to 12,636.02, 18,945.92 and 5,245.58 is: 7,865.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,636.02 : 18,945.92 = 5,245.58 : x
  2. Step 2: Convert to fraction form
    12,636.02/18,945.92 = 5,245.58/x
  3. Step 3: Cross multiply
    12,636.02x = 18,945.92 × 5,245.58
  4. Step 4: Simplify right side
    12,636.02x = 99,382,218.08
  5. Step 5: Solve for x
    x = 99,382,218.08/12,636.02
  6. Step 6: Final answer
    x = 7,865.00

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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.