Home / 13,451.91-18,525.08-13,408.11

Finding the Fourth Proportional to 13,451.91, 18,525.08 and 13,408.11

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Solution

The fourth proportional to 13,451.91, 18,525.08 and 13,408.11 is: 18,464.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.91 : 18,525.08 = 13,408.11 : x
  2. Step 2: Convert to fraction form
    13,451.91/18,525.08 = 13,408.11/x
  3. Step 3: Cross multiply
    13,451.91x = 18,525.08 × 13,408.11
  4. Step 4: Simplify right side
    13,451.91x = 248,386,243.36
  5. Step 5: Solve for x
    x = 248,386,243.36/13,451.91
  6. Step 6: Final answer
    x = 18,464.76

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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.