Home / 13,560.27-20,341.28-3,698.70

Finding the Fourth Proportional to 13,560.27, 20,341.28 and 3,698.70

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Solution

The fourth proportional to 13,560.27, 20,341.28 and 3,698.70 is: 5,548.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,560.27 : 20,341.28 = 3,698.70 : x
  2. Step 2: Convert to fraction form
    13,560.27/20,341.28 = 3,698.70/x
  3. Step 3: Cross multiply
    13,560.27x = 20,341.28 × 3,698.70
  4. Step 4: Simplify right side
    13,560.27x = 75,236,292.34
  5. Step 5: Solve for x
    x = 75,236,292.34/13,560.27
  6. Step 6: Final answer
    x = 5,548.29

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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.