Home / 8,538.05-11,787.15-5,899.64

Finding the Fourth Proportional to 8,538.05, 11,787.15 and 5,899.64

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Solution

The fourth proportional to 8,538.05, 11,787.15 and 5,899.64 is: 8,144.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538.05 : 11,787.15 = 5,899.64 : x
  2. Step 2: Convert to fraction form
    8,538.05/11,787.15 = 5,899.64/x
  3. Step 3: Cross multiply
    8,538.05x = 11,787.15 × 5,899.64
  4. Step 4: Simplify right side
    8,538.05x = 69,539,941.63
  5. Step 5: Solve for x
    x = 69,539,941.63/8,538.05
  6. Step 6: Final answer
    x = 8,144.71

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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.