Home / 15,435.27-21,300.62-8,361.68

Finding the Fourth Proportional to 15,435.27, 21,300.62 and 8,361.68

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Solution

The fourth proportional to 15,435.27, 21,300.62 and 8,361.68 is: 11,539.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,435.27 : 21,300.62 = 8,361.68 : x
  2. Step 2: Convert to fraction form
    15,435.27/21,300.62 = 8,361.68/x
  3. Step 3: Cross multiply
    15,435.27x = 21,300.62 × 8,361.68
  4. Step 4: Simplify right side
    15,435.27x = 178,108,819.93
  5. Step 5: Solve for x
    x = 178,108,819.93/15,435.27
  6. Step 6: Final answer
    x = 11,539.08

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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.