Home / 12,788.68-19,185.44-4,997

Finding the Fourth Proportional to 12,788.68, 19,185.44 and 4,997

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Solution

The fourth proportional to 12,788.68, 19,185.44 and 4,997 is: 7,496.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788.68 : 19,185.44 = 4,997 : x
  2. Step 2: Convert to fraction form
    12,788.68/19,185.44 = 4,997/x
  3. Step 3: Cross multiply
    12,788.68x = 19,185.44 × 4,997
  4. Step 4: Simplify right side
    12,788.68x = 95,869,643.68
  5. Step 5: Solve for x
    x = 95,869,643.68/12,788.68
  6. Step 6: Final answer
    x = 7,496.45

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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.