Home / 12,788.84-19,162.40-7,848.05

Finding the Fourth Proportional to 12,788.84, 19,162.40 and 7,848.05

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Solution

The fourth proportional to 12,788.84, 19,162.40 and 7,848.05 is: 11,759.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788.84 : 19,162.40 = 7,848.05 : x
  2. Step 2: Convert to fraction form
    12,788.84/19,162.40 = 7,848.05/x
  3. Step 3: Cross multiply
    12,788.84x = 19,162.40 × 7,848.05
  4. Step 4: Simplify right side
    12,788.84x = 150,387,338.27
  5. Step 5: Solve for x
    x = 150,387,338.27/12,788.84
  6. Step 6: Final answer
    x = 11,759.27

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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.