Home / 13,717.27-18,930.54-7,750.86

Finding the Fourth Proportional to 13,717.27, 18,930.54 and 7,750.86

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Solution

The fourth proportional to 13,717.27, 18,930.54 and 7,750.86 is: 10,696.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.27 : 18,930.54 = 7,750.86 : x
  2. Step 2: Convert to fraction form
    13,717.27/18,930.54 = 7,750.86/x
  3. Step 3: Cross multiply
    13,717.27x = 18,930.54 × 7,750.86
  4. Step 4: Simplify right side
    13,717.27x = 146,728,017.67
  5. Step 5: Solve for x
    x = 146,728,017.67/13,717.27
  6. Step 6: Final answer
    x = 10,696.59

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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.