Home / 12,313.02-18,463.05-8,418.54

Finding the Fourth Proportional to 12,313.02, 18,463.05 and 8,418.54

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Solution

The fourth proportional to 12,313.02, 18,463.05 and 8,418.54 is: 12,623.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,313.02 : 18,463.05 = 8,418.54 : x
  2. Step 2: Convert to fraction form
    12,313.02/18,463.05 = 8,418.54/x
  3. Step 3: Cross multiply
    12,313.02x = 18,463.05 × 8,418.54
  4. Step 4: Simplify right side
    12,313.02x = 155,431,924.95
  5. Step 5: Solve for x
    x = 155,431,924.95/12,313.02
  6. Step 6: Final answer
    x = 12,623.38

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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.