Home / 12,877.38-19,315.86-5,086.26

Finding the Fourth Proportional to 12,877.38, 19,315.86 and 5,086.26

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Solution

The fourth proportional to 12,877.38, 19,315.86 and 5,086.26 is: 7,629.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877.38 : 19,315.86 = 5,086.26 : x
  2. Step 2: Convert to fraction form
    12,877.38/19,315.86 = 5,086.26/x
  3. Step 3: Cross multiply
    12,877.38x = 19,315.86 × 5,086.26
  4. Step 4: Simplify right side
    12,877.38x = 98,245,486.08
  5. Step 5: Solve for x
    x = 98,245,486.08/12,877.38
  6. Step 6: Final answer
    x = 7,629.31

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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.