Home / 13,249.02-18,271.56-11,847.72

Finding the Fourth Proportional to 13,249.02, 18,271.56 and 11,847.72

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Solution

The fourth proportional to 13,249.02, 18,271.56 and 11,847.72 is: 16,339.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.02 : 18,271.56 = 11,847.72 : x
  2. Step 2: Convert to fraction form
    13,249.02/18,271.56 = 11,847.72/x
  3. Step 3: Cross multiply
    13,249.02x = 18,271.56 × 11,847.72
  4. Step 4: Simplify right side
    13,249.02x = 216,476,326.84
  5. Step 5: Solve for x
    x = 216,476,326.84/13,249.02
  6. Step 6: Final answer
    x = 16,339.04

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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.