Home / 13,989.53-19,279.83-13,101.77

Finding the Fourth Proportional to 13,989.53, 19,279.83 and 13,101.77

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Solution

The fourth proportional to 13,989.53, 19,279.83 and 13,101.77 is: 18,056.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989.53 : 19,279.83 = 13,101.77 : x
  2. Step 2: Convert to fraction form
    13,989.53/19,279.83 = 13,101.77/x
  3. Step 3: Cross multiply
    13,989.53x = 19,279.83 × 13,101.77
  4. Step 4: Simplify right side
    13,989.53x = 252,599,801.90
  5. Step 5: Solve for x
    x = 252,599,801.90/13,989.53
  6. Step 6: Final answer
    x = 18,056.35

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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.