Home / 12,720.37-19,081.41-4,401.19

Finding the Fourth Proportional to 12,720.37, 19,081.41 and 4,401.19

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Solution

The fourth proportional to 12,720.37, 19,081.41 and 4,401.19 is: 6,602.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,720.37 : 19,081.41 = 4,401.19 : x
  2. Step 2: Convert to fraction form
    12,720.37/19,081.41 = 4,401.19/x
  3. Step 3: Cross multiply
    12,720.37x = 19,081.41 × 4,401.19
  4. Step 4: Simplify right side
    12,720.37x = 83,980,910.88
  5. Step 5: Solve for x
    x = 83,980,910.88/12,720.37
  6. Step 6: Final answer
    x = 6,602.08

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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.