Home / 8,100.36-12,155.66-4,644.36

Finding the Fourth Proportional to 8,100.36, 12,155.66 and 4,644.36

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Solution

The fourth proportional to 8,100.36, 12,155.66 and 4,644.36 is: 6,969.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,100.36 : 12,155.66 = 4,644.36 : x
  2. Step 2: Convert to fraction form
    8,100.36/12,155.66 = 4,644.36/x
  3. Step 3: Cross multiply
    8,100.36x = 12,155.66 × 4,644.36
  4. Step 4: Simplify right side
    8,100.36x = 56,455,261.08
  5. Step 5: Solve for x
    x = 56,455,261.08/8,100.36
  6. Step 6: Final answer
    x = 6,969.48

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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.