Home / 14,540.76-20,039.81-11,352.40

Finding the Fourth Proportional to 14,540.76, 20,039.81 and 11,352.40

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Solution

The fourth proportional to 14,540.76, 20,039.81 and 11,352.40 is: 15,645.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,540.76 : 20,039.81 = 11,352.40 : x
  2. Step 2: Convert to fraction form
    14,540.76/20,039.81 = 11,352.40/x
  3. Step 3: Cross multiply
    14,540.76x = 20,039.81 × 11,352.40
  4. Step 4: Simplify right side
    14,540.76x = 227,499,939.04
  5. Step 5: Solve for x
    x = 227,499,939.04/14,540.76
  6. Step 6: Final answer
    x = 15,645.67

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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.