Home / 13,727.54-18,943.27-7,758.85

Finding the Fourth Proportional to 13,727.54, 18,943.27 and 7,758.85

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Solution

The fourth proportional to 13,727.54, 18,943.27 and 7,758.85 is: 10,706.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.54 : 18,943.27 = 7,758.85 : x
  2. Step 2: Convert to fraction form
    13,727.54/18,943.27 = 7,758.85/x
  3. Step 3: Cross multiply
    13,727.54x = 18,943.27 × 7,758.85
  4. Step 4: Simplify right side
    13,727.54x = 146,977,985.84
  5. Step 5: Solve for x
    x = 146,977,985.84/13,727.54
  6. Step 6: Final answer
    x = 10,706.80

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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.