Home / 15,216.02-20,986.98-10,171.37

Finding the Fourth Proportional to 15,216.02, 20,986.98 and 10,171.37

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Solution

The fourth proportional to 15,216.02, 20,986.98 and 10,171.37 is: 14,029.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216.02 : 20,986.98 = 10,171.37 : x
  2. Step 2: Convert to fraction form
    15,216.02/20,986.98 = 10,171.37/x
  3. Step 3: Cross multiply
    15,216.02x = 20,986.98 × 10,171.37
  4. Step 4: Simplify right side
    15,216.02x = 213,466,233.83
  5. Step 5: Solve for x
    x = 213,466,233.83/15,216.02
  6. Step 6: Final answer
    x = 14,029.05

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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.