Home / 10,141.36-15,212.02-7,385.56

Finding the Fourth Proportional to 10,141.36, 15,212.02 and 7,385.56

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Solution

The fourth proportional to 10,141.36, 15,212.02 and 7,385.56 is: 11,078.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,141.36 : 15,212.02 = 7,385.56 : x
  2. Step 2: Convert to fraction form
    10,141.36/15,212.02 = 7,385.56/x
  3. Step 3: Cross multiply
    10,141.36x = 15,212.02 × 7,385.56
  4. Step 4: Simplify right side
    10,141.36x = 112,349,286.43
  5. Step 5: Solve for x
    x = 112,349,286.43/10,141.36
  6. Step 6: Final answer
    x = 11,078.33

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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.