Home / 19,637.21-29,463.38-9,112.61

Finding the Fourth Proportional to 19,637.21, 29,463.38 and 9,112.61

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Solution

The fourth proportional to 19,637.21, 29,463.38 and 9,112.61 is: 13,672.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,637.21 : 29,463.38 = 9,112.61 : x
  2. Step 2: Convert to fraction form
    19,637.21/29,463.38 = 9,112.61/x
  3. Step 3: Cross multiply
    19,637.21x = 29,463.38 × 9,112.61
  4. Step 4: Simplify right side
    19,637.21x = 268,488,353.49
  5. Step 5: Solve for x
    x = 268,488,353.49/19,637.21
  6. Step 6: Final answer
    x = 13,672.43

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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.