Home / 12,989.22-19,497.62-10,553.45

Finding the Fourth Proportional to 12,989.22, 19,497.62 and 10,553.45

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Solution

The fourth proportional to 12,989.22, 19,497.62 and 10,553.45 is: 15,841.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,989.22 : 19,497.62 = 10,553.45 : x
  2. Step 2: Convert to fraction form
    12,989.22/19,497.62 = 10,553.45/x
  3. Step 3: Cross multiply
    12,989.22x = 19,497.62 × 10,553.45
  4. Step 4: Simplify right side
    12,989.22x = 205,767,007.53
  5. Step 5: Solve for x
    x = 205,767,007.53/12,989.22
  6. Step 6: Final answer
    x = 15,841.37

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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.