Home / 19,412.40-26,778.32-11,860.48

Finding the Fourth Proportional to 19,412.40, 26,778.32 and 11,860.48

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Solution

The fourth proportional to 19,412.40, 26,778.32 and 11,860.48 is: 16,360.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,412.40 : 26,778.32 = 11,860.48 : x
  2. Step 2: Convert to fraction form
    19,412.40/26,778.32 = 11,860.48/x
  3. Step 3: Cross multiply
    19,412.40x = 26,778.32 × 11,860.48
  4. Step 4: Simplify right side
    19,412.40x = 317,603,728.79
  5. Step 5: Solve for x
    x = 317,603,728.79/19,412.40
  6. Step 6: Final answer
    x = 16,360.87

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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.