Home / 11,397.84-15,728.58-6,361.80

Finding the Fourth Proportional to 11,397.84, 15,728.58 and 6,361.80

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Solution

The fourth proportional to 11,397.84, 15,728.58 and 6,361.80 is: 8,779.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,397.84 : 15,728.58 = 6,361.80 : x
  2. Step 2: Convert to fraction form
    11,397.84/15,728.58 = 6,361.80/x
  3. Step 3: Cross multiply
    11,397.84x = 15,728.58 × 6,361.80
  4. Step 4: Simplify right side
    11,397.84x = 100,062,080.24
  5. Step 5: Solve for x
    x = 100,062,080.24/11,397.84
  6. Step 6: Final answer
    x = 8,779.04

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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.