Home / 12,629.52-18,934.80-4,304.40

Finding the Fourth Proportional to 12,629.52, 18,934.80 and 4,304.40

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Solution

The fourth proportional to 12,629.52, 18,934.80 and 4,304.40 is: 6,453.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.52 : 18,934.80 = 4,304.40 : x
  2. Step 2: Convert to fraction form
    12,629.52/18,934.80 = 4,304.40/x
  3. Step 3: Cross multiply
    12,629.52x = 18,934.80 × 4,304.40
  4. Step 4: Simplify right side
    12,629.52x = 81,502,953.12
  5. Step 5: Solve for x
    x = 81,502,953.12/12,629.52
  6. Step 6: Final answer
    x = 6,453.37

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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.