Home / 11,815.26-16,309.72-7,098.63

Finding the Fourth Proportional to 11,815.26, 16,309.72 and 7,098.63

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Solution

The fourth proportional to 11,815.26, 16,309.72 and 7,098.63 is: 9,798.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,815.26 : 16,309.72 = 7,098.63 : x
  2. Step 2: Convert to fraction form
    11,815.26/16,309.72 = 7,098.63/x
  3. Step 3: Cross multiply
    11,815.26x = 16,309.72 × 7,098.63
  4. Step 4: Simplify right side
    11,815.26x = 115,776,667.68
  5. Step 5: Solve for x
    x = 115,776,667.68/11,815.26
  6. Step 6: Final answer
    x = 9,798.91

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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.