Home / 10,918.92-15,059.45-7,086.37

Finding the Fourth Proportional to 10,918.92, 15,059.45 and 7,086.37

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Solution

The fourth proportional to 10,918.92, 15,059.45 and 7,086.37 is: 9,773.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.92 : 15,059.45 = 7,086.37 : x
  2. Step 2: Convert to fraction form
    10,918.92/15,059.45 = 7,086.37/x
  3. Step 3: Cross multiply
    10,918.92x = 15,059.45 × 7,086.37
  4. Step 4: Simplify right side
    10,918.92x = 106,716,891.58
  5. Step 5: Solve for x
    x = 106,716,891.58/10,918.92
  6. Step 6: Final answer
    x = 9,773.58

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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.