Home / 14,075.44-21,023.26-12,739.20

Finding the Fourth Proportional to 14,075.44, 21,023.26 and 12,739.20

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Solution

The fourth proportional to 14,075.44, 21,023.26 and 12,739.20 is: 19,027.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,075.44 : 21,023.26 = 12,739.20 : x
  2. Step 2: Convert to fraction form
    14,075.44/21,023.26 = 12,739.20/x
  3. Step 3: Cross multiply
    14,075.44x = 21,023.26 × 12,739.20
  4. Step 4: Simplify right side
    14,075.44x = 267,819,513.79
  5. Step 5: Solve for x
    x = 267,819,513.79/14,075.44
  6. Step 6: Final answer
    x = 19,027.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.