Home / 8,455.83-12,686.45-4,073.73

Finding the Fourth Proportional to 8,455.83, 12,686.45 and 4,073.73

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Solution

The fourth proportional to 8,455.83, 12,686.45 and 4,073.73 is: 6,111.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.83 : 12,686.45 = 4,073.73 : x
  2. Step 2: Convert to fraction form
    8,455.83/12,686.45 = 4,073.73/x
  3. Step 3: Cross multiply
    8,455.83x = 12,686.45 × 4,073.73
  4. Step 4: Simplify right side
    8,455.83x = 51,681,151.59
  5. Step 5: Solve for x
    x = 51,681,151.59/8,455.83
  6. Step 6: Final answer
    x = 6,111.90

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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.