Home / 12,425.06-18,639.87-4,105.64

Finding the Fourth Proportional to 12,425.06, 18,639.87 and 4,105.64

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Solution

The fourth proportional to 12,425.06, 18,639.87 and 4,105.64 is: 6,159.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,425.06 : 18,639.87 = 4,105.64 : x
  2. Step 2: Convert to fraction form
    12,425.06/18,639.87 = 4,105.64/x
  3. Step 3: Cross multiply
    12,425.06x = 18,639.87 × 4,105.64
  4. Step 4: Simplify right side
    12,425.06x = 76,528,595.87
  5. Step 5: Solve for x
    x = 76,528,595.87/12,425.06
  6. Step 6: Final answer
    x = 6,159.21

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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.