Home / 13,717.74-18,932.02-7,749.78

Finding the Fourth Proportional to 13,717.74, 18,932.02 and 7,749.78

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Solution

The fourth proportional to 13,717.74, 18,932.02 and 7,749.78 is: 10,695.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.74 : 18,932.02 = 7,749.78 : x
  2. Step 2: Convert to fraction form
    13,717.74/18,932.02 = 7,749.78/x
  3. Step 3: Cross multiply
    13,717.74x = 18,932.02 × 7,749.78
  4. Step 4: Simplify right side
    13,717.74x = 146,718,989.96
  5. Step 5: Solve for x
    x = 146,718,989.96/13,717.74
  6. Step 6: Final answer
    x = 10,695.57

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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.