Home / 15,361.32-21,199.02-8,647.19

Finding the Fourth Proportional to 15,361.32, 21,199.02 and 8,647.19

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Solution

The fourth proportional to 15,361.32, 21,199.02 and 8,647.19 is: 11,933.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,361.32 : 21,199.02 = 8,647.19 : x
  2. Step 2: Convert to fraction form
    15,361.32/21,199.02 = 8,647.19/x
  3. Step 3: Cross multiply
    15,361.32x = 21,199.02 × 8,647.19
  4. Step 4: Simplify right side
    15,361.32x = 183,311,879.14
  5. Step 5: Solve for x
    x = 183,311,879.14/15,361.32
  6. Step 6: Final answer
    x = 11,933.34

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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.