Home / 11,363.57-15,686.58-7,639.73

Finding the Fourth Proportional to 11,363.57, 15,686.58 and 7,639.73

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Solution

The fourth proportional to 11,363.57, 15,686.58 and 7,639.73 is: 10,546.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,363.57 : 15,686.58 = 7,639.73 : x
  2. Step 2: Convert to fraction form
    11,363.57/15,686.58 = 7,639.73/x
  3. Step 3: Cross multiply
    11,363.57x = 15,686.58 × 7,639.73
  4. Step 4: Simplify right side
    11,363.57x = 119,841,235.82
  5. Step 5: Solve for x
    x = 119,841,235.82/11,363.57
  6. Step 6: Final answer
    x = 10,546.09

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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.