Home / 13,641.48-20,429.36-9,245.62

Finding the Fourth Proportional to 13,641.48, 20,429.36 and 9,245.62

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Solution

The fourth proportional to 13,641.48, 20,429.36 and 9,245.62 is: 13,846.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,641.48 : 20,429.36 = 9,245.62 : x
  2. Step 2: Convert to fraction form
    13,641.48/20,429.36 = 9,245.62/x
  3. Step 3: Cross multiply
    13,641.48x = 20,429.36 × 9,245.62
  4. Step 4: Simplify right side
    13,641.48x = 188,882,099.40
  5. Step 5: Solve for x
    x = 188,882,099.40/13,641.48
  6. Step 6: Final answer
    x = 13,846.16

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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.