Home / 13,538.52-20,305.31-6,141.20

Finding the Fourth Proportional to 13,538.52, 20,305.31 and 6,141.20

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Solution

The fourth proportional to 13,538.52, 20,305.31 and 6,141.20 is: 9,210.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538.52 : 20,305.31 = 6,141.20 : x
  2. Step 2: Convert to fraction form
    13,538.52/20,305.31 = 6,141.20/x
  3. Step 3: Cross multiply
    13,538.52x = 20,305.31 × 6,141.20
  4. Step 4: Simplify right side
    13,538.52x = 124,698,837.54
  5. Step 5: Solve for x
    x = 124,698,837.54/13,538.52
  6. Step 6: Final answer
    x = 9,210.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.