Home / 15,314.87-21,136.82-9,350.03

Finding the Fourth Proportional to 15,314.87, 21,136.82 and 9,350.03

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Solution

The fourth proportional to 15,314.87, 21,136.82 and 9,350.03 is: 12,904.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.87 : 21,136.82 = 9,350.03 : x
  2. Step 2: Convert to fraction form
    15,314.87/21,136.82 = 9,350.03/x
  3. Step 3: Cross multiply
    15,314.87x = 21,136.82 × 9,350.03
  4. Step 4: Simplify right side
    15,314.87x = 197,629,907.20
  5. Step 5: Solve for x
    x = 197,629,907.20/15,314.87
  6. Step 6: Final answer
    x = 12,904.44

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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.