Home / 13,166.96-18,172.15-8,464.91

Finding the Fourth Proportional to 13,166.96, 18,172.15 and 8,464.91

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Solution

The fourth proportional to 13,166.96, 18,172.15 and 8,464.91 is: 11,682.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166.96 : 18,172.15 = 8,464.91 : x
  2. Step 2: Convert to fraction form
    13,166.96/18,172.15 = 8,464.91/x
  3. Step 3: Cross multiply
    13,166.96x = 18,172.15 × 8,464.91
  4. Step 4: Simplify right side
    13,166.96x = 153,825,502.23
  5. Step 5: Solve for x
    x = 153,825,502.23/13,166.96
  6. Step 6: Final answer
    x = 11,682.69

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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.