Home / 13,939.67-19,210.17-13,683.48

Finding the Fourth Proportional to 13,939.67, 19,210.17 and 13,683.48

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Solution

The fourth proportional to 13,939.67, 19,210.17 and 13,683.48 is: 18,857.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.67 : 19,210.17 = 13,683.48 : x
  2. Step 2: Convert to fraction form
    13,939.67/19,210.17 = 13,683.48/x
  3. Step 3: Cross multiply
    13,939.67x = 19,210.17 × 13,683.48
  4. Step 4: Simplify right side
    13,939.67x = 262,861,976.99
  5. Step 5: Solve for x
    x = 262,861,976.99/13,939.67
  6. Step 6: Final answer
    x = 18,857.12

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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.