Home / 13,405.52-20,107.67-4,641.12

Finding the Fourth Proportional to 13,405.52, 20,107.67 and 4,641.12

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Solution

The fourth proportional to 13,405.52, 20,107.67 and 4,641.12 is: 6,961.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,405.52 : 20,107.67 = 4,641.12 : x
  2. Step 2: Convert to fraction form
    13,405.52/20,107.67 = 4,641.12/x
  3. Step 3: Cross multiply
    13,405.52x = 20,107.67 × 4,641.12
  4. Step 4: Simplify right side
    13,405.52x = 93,322,086.18
  5. Step 5: Solve for x
    x = 93,322,086.18/13,405.52
  6. Step 6: Final answer
    x = 6,961.47

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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.