Home / 13,915.36-19,221.60-10,372.42

Finding the Fourth Proportional to 13,915.36, 19,221.60 and 10,372.42

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Solution

The fourth proportional to 13,915.36, 19,221.60 and 10,372.42 is: 14,327.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.36 : 19,221.60 = 10,372.42 : x
  2. Step 2: Convert to fraction form
    13,915.36/19,221.60 = 10,372.42/x
  3. Step 3: Cross multiply
    13,915.36x = 19,221.60 × 10,372.42
  4. Step 4: Simplify right side
    13,915.36x = 199,374,508.27
  5. Step 5: Solve for x
    x = 199,374,508.27/13,915.36
  6. Step 6: Final answer
    x = 14,327.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.