Home / 12,548.94-18,820.25-5,155.44

Finding the Fourth Proportional to 12,548.94, 18,820.25 and 5,155.44

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Solution

The fourth proportional to 12,548.94, 18,820.25 and 5,155.44 is: 7,731.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,548.94 : 18,820.25 = 5,155.44 : x
  2. Step 2: Convert to fraction form
    12,548.94/18,820.25 = 5,155.44/x
  3. Step 3: Cross multiply
    12,548.94x = 18,820.25 × 5,155.44
  4. Step 4: Simplify right side
    12,548.94x = 97,026,682.55
  5. Step 5: Solve for x
    x = 97,026,682.55/12,548.94
  6. Step 6: Final answer
    x = 7,731.86

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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.