Home / 19,140.14-28,710.21-5,993.54

Finding the Fourth Proportional to 19,140.14, 28,710.21 and 5,993.54

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Solution

The fourth proportional to 19,140.14, 28,710.21 and 5,993.54 is: 8,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140.14 : 28,710.21 = 5,993.54 : x
  2. Step 2: Convert to fraction form
    19,140.14/28,710.21 = 5,993.54/x
  3. Step 3: Cross multiply
    19,140.14x = 28,710.21 × 5,993.54
  4. Step 4: Simplify right side
    19,140.14x = 172,075,648.49
  5. Step 5: Solve for x
    x = 172,075,648.49/19,140.14
  6. Step 6: Final answer
    x = 8,990.30

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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.