Home / 8,128.36-12,235.27-6,204.52

Finding the Fourth Proportional to 8,128.36, 12,235.27 and 6,204.52

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Solution

The fourth proportional to 8,128.36, 12,235.27 and 6,204.52 is: 9,339.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.36 : 12,235.27 = 6,204.52 : x
  2. Step 2: Convert to fraction form
    8,128.36/12,235.27 = 6,204.52/x
  3. Step 3: Cross multiply
    8,128.36x = 12,235.27 × 6,204.52
  4. Step 4: Simplify right side
    8,128.36x = 75,913,977.42
  5. Step 5: Solve for x
    x = 75,913,977.42/8,128.36
  6. Step 6: Final answer
    x = 9,339.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.