Home / 13,401.78-20,102.70-5,606.34

Finding the Fourth Proportional to 13,401.78, 20,102.70 and 5,606.34

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Solution

The fourth proportional to 13,401.78, 20,102.70 and 5,606.34 is: 8,409.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,401.78 : 20,102.70 = 5,606.34 : x
  2. Step 2: Convert to fraction form
    13,401.78/20,102.70 = 5,606.34/x
  3. Step 3: Cross multiply
    13,401.78x = 20,102.70 × 5,606.34
  4. Step 4: Simplify right side
    13,401.78x = 112,702,571.12
  5. Step 5: Solve for x
    x = 112,702,571.12/13,401.78
  6. Step 6: Final answer
    x = 8,409.52

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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.