Home / 8,731.57-13,097.01-2,157.58

Finding the Fourth Proportional to 8,731.57, 13,097.01 and 2,157.58

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Solution

The fourth proportional to 8,731.57, 13,097.01 and 2,157.58 is: 3,236.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.57 : 13,097.01 = 2,157.58 : x
  2. Step 2: Convert to fraction form
    8,731.57/13,097.01 = 2,157.58/x
  3. Step 3: Cross multiply
    8,731.57x = 13,097.01 × 2,157.58
  4. Step 4: Simplify right side
    8,731.57x = 28,257,846.84
  5. Step 5: Solve for x
    x = 28,257,846.84/8,731.57
  6. Step 6: Final answer
    x = 3,236.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.