Home / 12,975.82-19,445.28-10,003

Finding the Fourth Proportional to 12,975.82, 19,445.28 and 10,003

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Solution

The fourth proportional to 12,975.82, 19,445.28 and 10,003 is: 14,990.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.82 : 19,445.28 = 10,003 : x
  2. Step 2: Convert to fraction form
    12,975.82/19,445.28 = 10,003/x
  3. Step 3: Cross multiply
    12,975.82x = 19,445.28 × 10,003
  4. Step 4: Simplify right side
    12,975.82x = 194,511,135.84
  5. Step 5: Solve for x
    x = 194,511,135.84/12,975.82
  6. Step 6: Final answer
    x = 14,990.28

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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.