Home / 13,633.02-20,454.93-5,315.55

Finding the Fourth Proportional to 13,633.02, 20,454.93 and 5,315.55

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Solution

The fourth proportional to 13,633.02, 20,454.93 and 5,315.55 is: 7,975.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,633.02 : 20,454.93 = 5,315.55 : x
  2. Step 2: Convert to fraction form
    13,633.02/20,454.93 = 5,315.55/x
  3. Step 3: Cross multiply
    13,633.02x = 20,454.93 × 5,315.55
  4. Step 4: Simplify right side
    13,633.02x = 108,729,203.16
  5. Step 5: Solve for x
    x = 108,729,203.16/13,633.02
  6. Step 6: Final answer
    x = 7,975.43

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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.