Home / 13,677.94-18,872.24-7,709.62

Finding the Fourth Proportional to 13,677.94, 18,872.24 and 7,709.62

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Solution

The fourth proportional to 13,677.94, 18,872.24 and 7,709.62 is: 10,637.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.94 : 18,872.24 = 7,709.62 : x
  2. Step 2: Convert to fraction form
    13,677.94/18,872.24 = 7,709.62/x
  3. Step 3: Cross multiply
    13,677.94x = 18,872.24 × 7,709.62
  4. Step 4: Simplify right side
    13,677.94x = 145,497,798.95
  5. Step 5: Solve for x
    x = 145,497,798.95/13,677.94
  6. Step 6: Final answer
    x = 10,637.41

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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.