Home / 12,637.23-17,429.49-8,161.44

Finding the Fourth Proportional to 12,637.23, 17,429.49 and 8,161.44

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Solution

The fourth proportional to 12,637.23, 17,429.49 and 8,161.44 is: 11,256.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.23 : 17,429.49 = 8,161.44 : x
  2. Step 2: Convert to fraction form
    12,637.23/17,429.49 = 8,161.44/x
  3. Step 3: Cross multiply
    12,637.23x = 17,429.49 × 8,161.44
  4. Step 4: Simplify right side
    12,637.23x = 142,249,736.87
  5. Step 5: Solve for x
    x = 142,249,736.87/12,637.23
  6. Step 6: Final answer
    x = 11,256.40

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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.