Home / 13,699.62-20,518.28-10,719.49

Finding the Fourth Proportional to 13,699.62, 20,518.28 and 10,719.49

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Solution

The fourth proportional to 13,699.62, 20,518.28 and 10,719.49 is: 16,054.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,699.62 : 20,518.28 = 10,719.49 : x
  2. Step 2: Convert to fraction form
    13,699.62/20,518.28 = 10,719.49/x
  3. Step 3: Cross multiply
    13,699.62x = 20,518.28 × 10,719.49
  4. Step 4: Simplify right side
    13,699.62x = 219,945,497.28
  5. Step 5: Solve for x
    x = 219,945,497.28/13,699.62
  6. Step 6: Final answer
    x = 16,054.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.