Home / 13,567.88-20,372.48-12,899.63

Finding the Fourth Proportional to 13,567.88, 20,372.48 and 12,899.63

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Solution

The fourth proportional to 13,567.88, 20,372.48 and 12,899.63 is: 19,369.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,567.88 : 20,372.48 = 12,899.63 : x
  2. Step 2: Convert to fraction form
    13,567.88/20,372.48 = 12,899.63/x
  3. Step 3: Cross multiply
    13,567.88x = 20,372.48 × 12,899.63
  4. Step 4: Simplify right side
    13,567.88x = 262,797,454.18
  5. Step 5: Solve for x
    x = 262,797,454.18/13,567.88
  6. Step 6: Final answer
    x = 19,369.09

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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.