Home / 12,629.34-18,952.47-4,421.34

Finding the Fourth Proportional to 12,629.34, 18,952.47 and 4,421.34

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Solution

The fourth proportional to 12,629.34, 18,952.47 and 4,421.34 is: 6,634.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.34 : 18,952.47 = 4,421.34 : x
  2. Step 2: Convert to fraction form
    12,629.34/18,952.47 = 4,421.34/x
  3. Step 3: Cross multiply
    12,629.34x = 18,952.47 × 4,421.34
  4. Step 4: Simplify right side
    12,629.34x = 83,795,313.71
  5. Step 5: Solve for x
    x = 83,795,313.71/12,629.34
  6. Step 6: Final answer
    x = 6,634.97

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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.