Home / 19,374.32-26,728.44-11,918

Finding the Fourth Proportional to 19,374.32, 26,728.44 and 11,918

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Solution

The fourth proportional to 19,374.32, 26,728.44 and 11,918 is: 16,441.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,374.32 : 26,728.44 = 11,918 : x
  2. Step 2: Convert to fraction form
    19,374.32/26,728.44 = 11,918/x
  3. Step 3: Cross multiply
    19,374.32x = 26,728.44 × 11,918
  4. Step 4: Simplify right side
    19,374.32x = 318,549,547.92
  5. Step 5: Solve for x
    x = 318,549,547.92/19,374.32
  6. Step 6: Final answer
    x = 16,441.84

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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.