Home / 13,732.06-18,931.92-10,908.81

Finding the Fourth Proportional to 13,732.06, 18,931.92 and 10,908.81

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Solution

The fourth proportional to 13,732.06, 18,931.92 and 10,908.81 is: 15,039.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,732.06 : 18,931.92 = 10,908.81 : x
  2. Step 2: Convert to fraction form
    13,732.06/18,931.92 = 10,908.81/x
  3. Step 3: Cross multiply
    13,732.06x = 18,931.92 × 10,908.81
  4. Step 4: Simplify right side
    13,732.06x = 206,524,670.89
  5. Step 5: Solve for x
    x = 206,524,670.89/13,732.06
  6. Step 6: Final answer
    x = 15,039.60

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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.