Home / 13,840.46-19,097.44-7,789.88

Finding the Fourth Proportional to 13,840.46, 19,097.44 and 7,789.88

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Solution

The fourth proportional to 13,840.46, 19,097.44 and 7,789.88 is: 10,748.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.46 : 19,097.44 = 7,789.88 : x
  2. Step 2: Convert to fraction form
    13,840.46/19,097.44 = 7,789.88/x
  3. Step 3: Cross multiply
    13,840.46x = 19,097.44 × 7,789.88
  4. Step 4: Simplify right side
    13,840.46x = 148,766,765.91
  5. Step 5: Solve for x
    x = 148,766,765.91/13,840.46
  6. Step 6: Final answer
    x = 10,748.69

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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.