Home / 13,340.94-20,010.60-3,981.06

Finding the Fourth Proportional to 13,340.94, 20,010.60 and 3,981.06

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Solution

The fourth proportional to 13,340.94, 20,010.60 and 3,981.06 is: 5,971.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.94 : 20,010.60 = 3,981.06 : x
  2. Step 2: Convert to fraction form
    13,340.94/20,010.60 = 3,981.06/x
  3. Step 3: Cross multiply
    13,340.94x = 20,010.60 × 3,981.06
  4. Step 4: Simplify right side
    13,340.94x = 79,663,399.24
  5. Step 5: Solve for x
    x = 79,663,399.24/13,340.94
  6. Step 6: Final answer
    x = 5,971.35

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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.