Home / 13,077.18-19,617.12-4,189.39

Finding the Fourth Proportional to 13,077.18, 19,617.12 and 4,189.39

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Solution

The fourth proportional to 13,077.18, 19,617.12 and 4,189.39 is: 6,284.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,077.18 : 19,617.12 = 4,189.39 : x
  2. Step 2: Convert to fraction form
    13,077.18/19,617.12 = 4,189.39/x
  3. Step 3: Cross multiply
    13,077.18x = 19,617.12 × 4,189.39
  4. Step 4: Simplify right side
    13,077.18x = 82,183,717.31
  5. Step 5: Solve for x
    x = 82,183,717.31/13,077.18
  6. Step 6: Final answer
    x = 6,284.51

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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.