Home / 13,575.53-20,366.49-4,215.07

Finding the Fourth Proportional to 13,575.53, 20,366.49 and 4,215.07

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Solution

The fourth proportional to 13,575.53, 20,366.49 and 4,215.07 is: 6,323.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,575.53 : 20,366.49 = 4,215.07 : x
  2. Step 2: Convert to fraction form
    13,575.53/20,366.49 = 4,215.07/x
  3. Step 3: Cross multiply
    13,575.53x = 20,366.49 × 4,215.07
  4. Step 4: Simplify right side
    13,575.53x = 85,846,114.28
  5. Step 5: Solve for x
    x = 85,846,114.28/13,575.53
  6. Step 6: Final answer
    x = 6,323.59

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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.