Home / 12,889.22-19,421.62-10,600.49

Finding the Fourth Proportional to 12,889.22, 19,421.62 and 10,600.49

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Solution

The fourth proportional to 12,889.22, 19,421.62 and 10,600.49 is: 15,972.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889.22 : 19,421.62 = 10,600.49 : x
  2. Step 2: Convert to fraction form
    12,889.22/19,421.62 = 10,600.49/x
  3. Step 3: Cross multiply
    12,889.22x = 19,421.62 × 10,600.49
  4. Step 4: Simplify right side
    12,889.22x = 205,878,710.65
  5. Step 5: Solve for x
    x = 205,878,710.65/12,889.22
  6. Step 6: Final answer
    x = 15,972.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.