Home / 12,781.87-19,173.48-4,017.47

Finding the Fourth Proportional to 12,781.87, 19,173.48 and 4,017.47

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Solution

The fourth proportional to 12,781.87, 19,173.48 and 4,017.47 is: 6,026.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781.87 : 19,173.48 = 4,017.47 : x
  2. Step 2: Convert to fraction form
    12,781.87/19,173.48 = 4,017.47/x
  3. Step 3: Cross multiply
    12,781.87x = 19,173.48 × 4,017.47
  4. Step 4: Simplify right side
    12,781.87x = 77,028,880.70
  5. Step 5: Solve for x
    x = 77,028,880.70/12,781.87
  6. Step 6: Final answer
    x = 6,026.42

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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.