Home / 12,650.88-18,983.16-5,260.44

Finding the Fourth Proportional to 12,650.88, 18,983.16 and 5,260.44

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Solution

The fourth proportional to 12,650.88, 18,983.16 and 5,260.44 is: 7,893.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,650.88 : 18,983.16 = 5,260.44 : x
  2. Step 2: Convert to fraction form
    12,650.88/18,983.16 = 5,260.44/x
  3. Step 3: Cross multiply
    12,650.88x = 18,983.16 × 5,260.44
  4. Step 4: Simplify right side
    12,650.88x = 99,859,774.19
  5. Step 5: Solve for x
    x = 99,859,774.19/12,650.88
  6. Step 6: Final answer
    x = 7,893.50

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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.