Home / 13,102.84-18,081.66-7,134.58

Finding the Fourth Proportional to 13,102.84, 18,081.66 and 7,134.58

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Solution

The fourth proportional to 13,102.84, 18,081.66 and 7,134.58 is: 9,845.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,102.84 : 18,081.66 = 7,134.58 : x
  2. Step 2: Convert to fraction form
    13,102.84/18,081.66 = 7,134.58/x
  3. Step 3: Cross multiply
    13,102.84x = 18,081.66 × 7,134.58
  4. Step 4: Simplify right side
    13,102.84x = 129,005,049.80
  5. Step 5: Solve for x
    x = 129,005,049.80/13,102.84
  6. Step 6: Final answer
    x = 9,845.58

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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.