Home / 13,614.76-18,780.86-11,502.94

Finding the Fourth Proportional to 13,614.76, 18,780.86 and 11,502.94

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Solution

The fourth proportional to 13,614.76, 18,780.86 and 11,502.94 is: 15,867.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.76 : 18,780.86 = 11,502.94 : x
  2. Step 2: Convert to fraction form
    13,614.76/18,780.86 = 11,502.94/x
  3. Step 3: Cross multiply
    13,614.76x = 18,780.86 × 11,502.94
  4. Step 4: Simplify right side
    13,614.76x = 216,035,069.93
  5. Step 5: Solve for x
    x = 216,035,069.93/13,614.76
  6. Step 6: Final answer
    x = 15,867.71

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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.