Home / 13,980.88-19,295.85-8,239.27

Finding the Fourth Proportional to 13,980.88, 19,295.85 and 8,239.27

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Solution

The fourth proportional to 13,980.88, 19,295.85 and 8,239.27 is: 11,371.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980.88 : 19,295.85 = 8,239.27 : x
  2. Step 2: Convert to fraction form
    13,980.88/19,295.85 = 8,239.27/x
  3. Step 3: Cross multiply
    13,980.88x = 19,295.85 × 8,239.27
  4. Step 4: Simplify right side
    13,980.88x = 158,983,718.03
  5. Step 5: Solve for x
    x = 158,983,718.03/13,980.88
  6. Step 6: Final answer
    x = 11,371.51

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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.