Home / 13,740.44-18,963.72-8,077.32

Finding the Fourth Proportional to 13,740.44, 18,963.72 and 8,077.32

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Solution

The fourth proportional to 13,740.44, 18,963.72 and 8,077.32 is: 11,147.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,740.44 : 18,963.72 = 8,077.32 : x
  2. Step 2: Convert to fraction form
    13,740.44/18,963.72 = 8,077.32/x
  3. Step 3: Cross multiply
    13,740.44x = 18,963.72 × 8,077.32
  4. Step 4: Simplify right side
    13,740.44x = 153,176,034.83
  5. Step 5: Solve for x
    x = 153,176,034.83/13,740.44
  6. Step 6: Final answer
    x = 11,147.83

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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.