Home / 13,742.52-20,622.69-4,976.70

Finding the Fourth Proportional to 13,742.52, 20,622.69 and 4,976.70

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Solution

The fourth proportional to 13,742.52, 20,622.69 and 4,976.70 is: 7,468.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,742.52 : 20,622.69 = 4,976.70 : x
  2. Step 2: Convert to fraction form
    13,742.52/20,622.69 = 4,976.70/x
  3. Step 3: Cross multiply
    13,742.52x = 20,622.69 × 4,976.70
  4. Step 4: Simplify right side
    13,742.52x = 102,632,941.32
  5. Step 5: Solve for x
    x = 102,632,941.32/13,742.52
  6. Step 6: Final answer
    x = 7,468.28

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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.