Home / 13,860.71-19,122.35-8,546.30

Finding the Fourth Proportional to 13,860.71, 19,122.35 and 8,546.30

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Solution

The fourth proportional to 13,860.71, 19,122.35 and 8,546.30 is: 11,790.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.71 : 19,122.35 = 8,546.30 : x
  2. Step 2: Convert to fraction form
    13,860.71/19,122.35 = 8,546.30/x
  3. Step 3: Cross multiply
    13,860.71x = 19,122.35 × 8,546.30
  4. Step 4: Simplify right side
    13,860.71x = 163,425,408.98
  5. Step 5: Solve for x
    x = 163,425,408.98/13,860.71
  6. Step 6: Final answer
    x = 11,790.55

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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.