Home / 13,425.02-20,137.64-4,065.77

Finding the Fourth Proportional to 13,425.02, 20,137.64 and 4,065.77

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Solution

The fourth proportional to 13,425.02, 20,137.64 and 4,065.77 is: 6,098.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.02 : 20,137.64 = 4,065.77 : x
  2. Step 2: Convert to fraction form
    13,425.02/20,137.64 = 4,065.77/x
  3. Step 3: Cross multiply
    13,425.02x = 20,137.64 × 4,065.77
  4. Step 4: Simplify right side
    13,425.02x = 81,874,987.75
  5. Step 5: Solve for x
    x = 81,874,987.75/13,425.02
  6. Step 6: Final answer
    x = 6,098.69

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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.