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Finding the Fourth Proportional to 13,249.71, 19,873.22 and 7,007.31

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Solution

The fourth proportional to 13,249.71, 19,873.22 and 7,007.31 is: 10,510.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.71 : 19,873.22 = 7,007.31 : x
  2. Step 2: Convert to fraction form
    13,249.71/19,873.22 = 7,007.31/x
  3. Step 3: Cross multiply
    13,249.71x = 19,873.22 × 7,007.31
  4. Step 4: Simplify right side
    13,249.71x = 139,257,778.20
  5. Step 5: Solve for x
    x = 139,257,778.20/13,249.71
  6. Step 6: Final answer
    x = 10,510.25

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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.