Home / 19,021.78-26,253.66-12,745.06

Finding the Fourth Proportional to 19,021.78, 26,253.66 and 12,745.06

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Solution

The fourth proportional to 19,021.78, 26,253.66 and 12,745.06 is: 17,590.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,021.78 : 26,253.66 = 12,745.06 : x
  2. Step 2: Convert to fraction form
    19,021.78/26,253.66 = 12,745.06/x
  3. Step 3: Cross multiply
    19,021.78x = 26,253.66 × 12,745.06
  4. Step 4: Simplify right side
    19,021.78x = 334,604,471.92
  5. Step 5: Solve for x
    x = 334,604,471.92/19,021.78
  6. Step 6: Final answer
    x = 17,590.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.