Home / 13,183.86-19,783.08-5,398.14

Finding the Fourth Proportional to 13,183.86, 19,783.08 and 5,398.14

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Solution

The fourth proportional to 13,183.86, 19,783.08 and 5,398.14 is: 8,100.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.86 : 19,783.08 = 5,398.14 : x
  2. Step 2: Convert to fraction form
    13,183.86/19,783.08 = 5,398.14/x
  3. Step 3: Cross multiply
    13,183.86x = 19,783.08 × 5,398.14
  4. Step 4: Simplify right side
    13,183.86x = 106,791,835.47
  5. Step 5: Solve for x
    x = 106,791,835.47/13,183.86
  6. Step 6: Final answer
    x = 8,100.19

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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.