Home / 13,604.13-20,403.45-4,242.63

Finding the Fourth Proportional to 13,604.13, 20,403.45 and 4,242.63

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Solution

The fourth proportional to 13,604.13, 20,403.45 and 4,242.63 is: 6,363.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,604.13 : 20,403.45 = 4,242.63 : x
  2. Step 2: Convert to fraction form
    13,604.13/20,403.45 = 4,242.63/x
  3. Step 3: Cross multiply
    13,604.13x = 20,403.45 × 4,242.63
  4. Step 4: Simplify right side
    13,604.13x = 86,564,289.07
  5. Step 5: Solve for x
    x = 86,564,289.07/13,604.13
  6. Step 6: Final answer
    x = 6,363.09

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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.