Home / 12,939.62-19,395.59-6,693.35

Finding the Fourth Proportional to 12,939.62, 19,395.59 and 6,693.35

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Solution

The fourth proportional to 12,939.62, 19,395.59 and 6,693.35 is: 10,032.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939.62 : 19,395.59 = 6,693.35 : x
  2. Step 2: Convert to fraction form
    12,939.62/19,395.59 = 6,693.35/x
  3. Step 3: Cross multiply
    12,939.62x = 19,395.59 × 6,693.35
  4. Step 4: Simplify right side
    12,939.62x = 129,821,392.08
  5. Step 5: Solve for x
    x = 129,821,392.08/12,939.62
  6. Step 6: Final answer
    x = 10,032.86

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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.