Home / 14,829.44-20,418-12,586.64

Finding the Fourth Proportional to 14,829.44, 20,418 and 12,586.64

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Solution

The fourth proportional to 14,829.44, 20,418 and 12,586.64 is: 17,329.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,829.44 : 20,418 = 12,586.64 : x
  2. Step 2: Convert to fraction form
    14,829.44/20,418 = 12,586.64/x
  3. Step 3: Cross multiply
    14,829.44x = 20,418 × 12,586.64
  4. Step 4: Simplify right side
    14,829.44x = 256,994,015.52
  5. Step 5: Solve for x
    x = 256,994,015.52/14,829.44
  6. Step 6: Final answer
    x = 17,329.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.