Home / 12,854.90-19,260.33-7,015.61

Finding the Fourth Proportional to 12,854.90, 19,260.33 and 7,015.61

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Solution

The fourth proportional to 12,854.90, 19,260.33 and 7,015.61 is: 10,511.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,854.90 : 19,260.33 = 7,015.61 : x
  2. Step 2: Convert to fraction form
    12,854.90/19,260.33 = 7,015.61/x
  3. Step 3: Cross multiply
    12,854.90x = 19,260.33 × 7,015.61
  4. Step 4: Simplify right side
    12,854.90x = 135,122,867.45
  5. Step 5: Solve for x
    x = 135,122,867.45/12,854.90
  6. Step 6: Final answer
    x = 10,511.39

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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.