Home / 15,361.26-21,199.32-8,647.98

Finding the Fourth Proportional to 15,361.26, 21,199.32 and 8,647.98

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Solution

The fourth proportional to 15,361.26, 21,199.32 and 8,647.98 is: 11,934.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,361.26 : 21,199.32 = 8,647.98 : x
  2. Step 2: Convert to fraction form
    15,361.26/21,199.32 = 8,647.98/x
  3. Step 3: Cross multiply
    15,361.26x = 21,199.32 × 8,647.98
  4. Step 4: Simplify right side
    15,361.26x = 183,331,295.37
  5. Step 5: Solve for x
    x = 183,331,295.37/15,361.26
  6. Step 6: Final answer
    x = 11,934.65

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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.