Home / 13,788.39-20,692.98-10,100.07

Finding the Fourth Proportional to 13,788.39, 20,692.98 and 10,100.07

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Solution

The fourth proportional to 13,788.39, 20,692.98 and 10,100.07 is: 15,157.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.39 : 20,692.98 = 10,100.07 : x
  2. Step 2: Convert to fraction form
    13,788.39/20,692.98 = 10,100.07/x
  3. Step 3: Cross multiply
    13,788.39x = 20,692.98 × 10,100.07
  4. Step 4: Simplify right side
    13,788.39x = 209,000,546.51
  5. Step 5: Solve for x
    x = 209,000,546.51/13,788.39
  6. Step 6: Final answer
    x = 15,157.72

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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.