Home / 12,664.63-18,996.95-5,642.83

Finding the Fourth Proportional to 12,664.63, 18,996.95 and 5,642.83

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Solution

The fourth proportional to 12,664.63, 18,996.95 and 5,642.83 is: 8,464.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.63 : 18,996.95 = 5,642.83 : x
  2. Step 2: Convert to fraction form
    12,664.63/18,996.95 = 5,642.83/x
  3. Step 3: Cross multiply
    12,664.63x = 18,996.95 × 5,642.83
  4. Step 4: Simplify right side
    12,664.63x = 107,196,559.37
  5. Step 5: Solve for x
    x = 107,196,559.37/12,664.63
  6. Step 6: Final answer
    x = 8,464.25

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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.