Home / 13,066.91-18,036.44-8,351.18

Finding the Fourth Proportional to 13,066.91, 18,036.44 and 8,351.18

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Solution

The fourth proportional to 13,066.91, 18,036.44 and 8,351.18 is: 11,527.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,066.91 : 18,036.44 = 8,351.18 : x
  2. Step 2: Convert to fraction form
    13,066.91/18,036.44 = 8,351.18/x
  3. Step 3: Cross multiply
    13,066.91x = 18,036.44 × 8,351.18
  4. Step 4: Simplify right side
    13,066.91x = 150,625,557.00
  5. Step 5: Solve for x
    x = 150,625,557.00/13,066.91
  6. Step 6: Final answer
    x = 11,527.25

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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.