Home / 13,543.61-20,315.32-3,682.85

Finding the Fourth Proportional to 13,543.61, 20,315.32 and 3,682.85

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Solution

The fourth proportional to 13,543.61, 20,315.32 and 3,682.85 is: 5,524.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.61 : 20,315.32 = 3,682.85 : x
  2. Step 2: Convert to fraction form
    13,543.61/20,315.32 = 3,682.85/x
  3. Step 3: Cross multiply
    13,543.61x = 20,315.32 × 3,682.85
  4. Step 4: Simplify right side
    13,543.61x = 74,818,165.48
  5. Step 5: Solve for x
    x = 74,818,165.48/13,543.61
  6. Step 6: Final answer
    x = 5,524.24

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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.