Home / 12,459.63-18,685.38-4,137.39

Finding the Fourth Proportional to 12,459.63, 18,685.38 and 4,137.39

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Solution

The fourth proportional to 12,459.63, 18,685.38 and 4,137.39 is: 6,204.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459.63 : 18,685.38 = 4,137.39 : x
  2. Step 2: Convert to fraction form
    12,459.63/18,685.38 = 4,137.39/x
  3. Step 3: Cross multiply
    12,459.63x = 18,685.38 × 4,137.39
  4. Step 4: Simplify right side
    12,459.63x = 77,308,704.36
  5. Step 5: Solve for x
    x = 77,308,704.36/12,459.63
  6. Step 6: Final answer
    x = 6,204.74

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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.