Home / 13,553.64-20,309.43-9,401.85

Finding the Fourth Proportional to 13,553.64, 20,309.43 and 9,401.85

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Solution

The fourth proportional to 13,553.64, 20,309.43 and 9,401.85 is: 14,088.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.64 : 20,309.43 = 9,401.85 : x
  2. Step 2: Convert to fraction form
    13,553.64/20,309.43 = 9,401.85/x
  3. Step 3: Cross multiply
    13,553.64x = 20,309.43 × 9,401.85
  4. Step 4: Simplify right side
    13,553.64x = 190,946,214.45
  5. Step 5: Solve for x
    x = 190,946,214.45/13,553.64
  6. Step 6: Final answer
    x = 14,088.19

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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.