Home / 19,388.84-29,081.63-7,698.92

Finding the Fourth Proportional to 19,388.84, 29,081.63 and 7,698.92

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Solution

The fourth proportional to 19,388.84, 29,081.63 and 7,698.92 is: 11,547.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,388.84 : 29,081.63 = 7,698.92 : x
  2. Step 2: Convert to fraction form
    19,388.84/29,081.63 = 7,698.92/x
  3. Step 3: Cross multiply
    19,388.84x = 29,081.63 × 7,698.92
  4. Step 4: Simplify right side
    19,388.84x = 223,897,016.68
  5. Step 5: Solve for x
    x = 223,897,016.68/19,388.84
  6. Step 6: Final answer
    x = 11,547.73

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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.