Home / 12,854.64-19,285.74-4,089.36

Finding the Fourth Proportional to 12,854.64, 19,285.74 and 4,089.36

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Solution

The fourth proportional to 12,854.64, 19,285.74 and 4,089.36 is: 6,135.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,854.64 : 19,285.74 = 4,089.36 : x
  2. Step 2: Convert to fraction form
    12,854.64/19,285.74 = 4,089.36/x
  3. Step 3: Cross multiply
    12,854.64x = 19,285.74 × 4,089.36
  4. Step 4: Simplify right side
    12,854.64x = 78,866,333.73
  5. Step 5: Solve for x
    x = 78,866,333.73/12,854.64
  6. Step 6: Final answer
    x = 6,135.24

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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.