Home / 13,784.18-19,022.37-8,475.86

Finding the Fourth Proportional to 13,784.18, 19,022.37 and 8,475.86

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Solution

The fourth proportional to 13,784.18, 19,022.37 and 8,475.86 is: 11,696.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.18 : 19,022.37 = 8,475.86 : x
  2. Step 2: Convert to fraction form
    13,784.18/19,022.37 = 8,475.86/x
  3. Step 3: Cross multiply
    13,784.18x = 19,022.37 × 8,475.86
  4. Step 4: Simplify right side
    13,784.18x = 161,230,944.99
  5. Step 5: Solve for x
    x = 161,230,944.99/13,784.18
  6. Step 6: Final answer
    x = 11,696.81

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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.