Home / 13,631.40-20,429.66-7,044.84

Finding the Fourth Proportional to 13,631.40, 20,429.66 and 7,044.84

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Solution

The fourth proportional to 13,631.40, 20,429.66 and 7,044.84 is: 10,558.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.40 : 20,429.66 = 7,044.84 : x
  2. Step 2: Convert to fraction form
    13,631.40/20,429.66 = 7,044.84/x
  3. Step 3: Cross multiply
    13,631.40x = 20,429.66 × 7,044.84
  4. Step 4: Simplify right side
    13,631.40x = 143,923,685.95
  5. Step 5: Solve for x
    x = 143,923,685.95/13,631.40
  6. Step 6: Final answer
    x = 10,558.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.