Home / 14,018.78-19,345.56-7,730.75

Finding the Fourth Proportional to 14,018.78, 19,345.56 and 7,730.75

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Solution

The fourth proportional to 14,018.78, 19,345.56 and 7,730.75 is: 10,668.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,018.78 : 19,345.56 = 7,730.75 : x
  2. Step 2: Convert to fraction form
    14,018.78/19,345.56 = 7,730.75/x
  3. Step 3: Cross multiply
    14,018.78x = 19,345.56 × 7,730.75
  4. Step 4: Simplify right side
    14,018.78x = 149,555,687.97
  5. Step 5: Solve for x
    x = 149,555,687.97/14,018.78
  6. Step 6: Final answer
    x = 10,668.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.