Home / 12,943.82-19,435.17-7,403.42

Finding the Fourth Proportional to 12,943.82, 19,435.17 and 7,403.42

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Solution

The fourth proportional to 12,943.82, 19,435.17 and 7,403.42 is: 11,116.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,943.82 : 19,435.17 = 7,403.42 : x
  2. Step 2: Convert to fraction form
    12,943.82/19,435.17 = 7,403.42/x
  3. Step 3: Cross multiply
    12,943.82x = 19,435.17 × 7,403.42
  4. Step 4: Simplify right side
    12,943.82x = 143,886,629.11
  5. Step 5: Solve for x
    x = 143,886,629.11/12,943.82
  6. Step 6: Final answer
    x = 11,116.25

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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.