Home / 19,768.87-27,280.80-10,816.25

Finding the Fourth Proportional to 19,768.87, 27,280.80 and 10,816.25

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Solution

The fourth proportional to 19,768.87, 27,280.80 and 10,816.25 is: 14,926.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,768.87 : 27,280.80 = 10,816.25 : x
  2. Step 2: Convert to fraction form
    19,768.87/27,280.80 = 10,816.25/x
  3. Step 3: Cross multiply
    19,768.87x = 27,280.80 × 10,816.25
  4. Step 4: Simplify right side
    19,768.87x = 295,075,816.60
  5. Step 5: Solve for x
    x = 295,075,816.60/19,768.87
  6. Step 6: Final answer
    x = 14,926.29

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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.