Home / 13,968.53-20,821.21-12,847.52

Finding the Fourth Proportional to 13,968.53, 20,821.21 and 12,847.52

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Solution

The fourth proportional to 13,968.53, 20,821.21 and 12,847.52 is: 19,150.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.53 : 20,821.21 = 12,847.52 : x
  2. Step 2: Convert to fraction form
    13,968.53/20,821.21 = 12,847.52/x
  3. Step 3: Cross multiply
    13,968.53x = 20,821.21 × 12,847.52
  4. Step 4: Simplify right side
    13,968.53x = 267,500,931.83
  5. Step 5: Solve for x
    x = 267,500,931.83/13,968.53
  6. Step 6: Final answer
    x = 19,150.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.