Home / 11,451.40-15,804.18-6,415.83

Finding the Fourth Proportional to 11,451.40, 15,804.18 and 6,415.83

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Solution

The fourth proportional to 11,451.40, 15,804.18 and 6,415.83 is: 8,854.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,451.40 : 15,804.18 = 6,415.83 : x
  2. Step 2: Convert to fraction form
    11,451.40/15,804.18 = 6,415.83/x
  3. Step 3: Cross multiply
    11,451.40x = 15,804.18 × 6,415.83
  4. Step 4: Simplify right side
    11,451.40x = 101,396,932.17
  5. Step 5: Solve for x
    x = 101,396,932.17/11,451.40
  6. Step 6: Final answer
    x = 8,854.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.