Home / 14,475.78-21,713.67-12,828.24

Finding the Fourth Proportional to 14,475.78, 21,713.67 and 12,828.24

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Solution

The fourth proportional to 14,475.78, 21,713.67 and 12,828.24 is: 19,242.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,475.78 : 21,713.67 = 12,828.24 : x
  2. Step 2: Convert to fraction form
    14,475.78/21,713.67 = 12,828.24/x
  3. Step 3: Cross multiply
    14,475.78x = 21,713.67 × 12,828.24
  4. Step 4: Simplify right side
    14,475.78x = 278,548,170.04
  5. Step 5: Solve for x
    x = 278,548,170.04/14,475.78
  6. Step 6: Final answer
    x = 19,242.36

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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.