Home / 19,637.90-27,099.87-10,685.43

Finding the Fourth Proportional to 19,637.90, 27,099.87 and 10,685.43

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Solution

The fourth proportional to 19,637.90, 27,099.87 and 10,685.43 is: 14,745.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,637.90 : 27,099.87 = 10,685.43 : x
  2. Step 2: Convert to fraction form
    19,637.90/27,099.87 = 10,685.43/x
  3. Step 3: Cross multiply
    19,637.90x = 27,099.87 × 10,685.43
  4. Step 4: Simplify right side
    19,637.90x = 289,573,647.61
  5. Step 5: Solve for x
    x = 289,573,647.61/19,637.90
  6. Step 6: Final answer
    x = 14,745.65

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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.