Home / 13,477.08-18,600.02-8,171.88

Finding the Fourth Proportional to 13,477.08, 18,600.02 and 8,171.88

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Solution

The fourth proportional to 13,477.08, 18,600.02 and 8,171.88 is: 11,278.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,477.08 : 18,600.02 = 8,171.88 : x
  2. Step 2: Convert to fraction form
    13,477.08/18,600.02 = 8,171.88/x
  3. Step 3: Cross multiply
    13,477.08x = 18,600.02 × 8,171.88
  4. Step 4: Simplify right side
    13,477.08x = 151,997,131.44
  5. Step 5: Solve for x
    x = 151,997,131.44/13,477.08
  6. Step 6: Final answer
    x = 11,278.19

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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.