Home / 13,677.27-18,874.64-7,389.65

Finding the Fourth Proportional to 13,677.27, 18,874.64 and 7,389.65

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Solution

The fourth proportional to 13,677.27, 18,874.64 and 7,389.65 is: 10,197.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.27 : 18,874.64 = 7,389.65 : x
  2. Step 2: Convert to fraction form
    13,677.27/18,874.64 = 7,389.65/x
  3. Step 3: Cross multiply
    13,677.27x = 18,874.64 × 7,389.65
  4. Step 4: Simplify right side
    13,677.27x = 139,476,983.48
  5. Step 5: Solve for x
    x = 139,476,983.48/13,677.27
  6. Step 6: Final answer
    x = 10,197.72

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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.