Home / 14,075.85-21,111.20-5,189.25

Finding the Fourth Proportional to 14,075.85, 21,111.20 and 5,189.25

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Solution

The fourth proportional to 14,075.85, 21,111.20 and 5,189.25 is: 7,782.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,075.85 : 21,111.20 = 5,189.25 : x
  2. Step 2: Convert to fraction form
    14,075.85/21,111.20 = 5,189.25/x
  3. Step 3: Cross multiply
    14,075.85x = 21,111.20 × 5,189.25
  4. Step 4: Simplify right side
    14,075.85x = 109,551,268.65
  5. Step 5: Solve for x
    x = 109,551,268.65/14,075.85
  6. Step 6: Final answer
    x = 7,782.92

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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.