Home / 13,809.87-19,054.31-8,144.18

Finding the Fourth Proportional to 13,809.87, 19,054.31 and 8,144.18

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Solution

The fourth proportional to 13,809.87, 19,054.31 and 8,144.18 is: 11,237.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.87 : 19,054.31 = 8,144.18 : x
  2. Step 2: Convert to fraction form
    13,809.87/19,054.31 = 8,144.18/x
  3. Step 3: Cross multiply
    13,809.87x = 19,054.31 × 8,144.18
  4. Step 4: Simplify right side
    13,809.87x = 155,181,594.42
  5. Step 5: Solve for x
    x = 155,181,594.42/13,809.87
  6. Step 6: Final answer
    x = 11,237.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.