Home / 14,147.40-21,195.80-9,453.20

Finding the Fourth Proportional to 14,147.40, 21,195.80 and 9,453.20

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Solution

The fourth proportional to 14,147.40, 21,195.80 and 9,453.20 is: 14,162.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.40 : 21,195.80 = 9,453.20 : x
  2. Step 2: Convert to fraction form
    14,147.40/21,195.80 = 9,453.20/x
  3. Step 3: Cross multiply
    14,147.40x = 21,195.80 × 9,453.20
  4. Step 4: Simplify right side
    14,147.40x = 200,368,136.56
  5. Step 5: Solve for x
    x = 200,368,136.56/14,147.40
  6. Step 6: Final answer
    x = 14,162.89

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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.