Home / 13,692.02-18,895.26-7,722.54

Finding the Fourth Proportional to 13,692.02, 18,895.26 and 7,722.54

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Solution

The fourth proportional to 13,692.02, 18,895.26 and 7,722.54 is: 10,657.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,692.02 : 18,895.26 = 7,722.54 : x
  2. Step 2: Convert to fraction form
    13,692.02/18,895.26 = 7,722.54/x
  3. Step 3: Cross multiply
    13,692.02x = 18,895.26 × 7,722.54
  4. Step 4: Simplify right side
    13,692.02x = 145,919,401.16
  5. Step 5: Solve for x
    x = 145,919,401.16/13,692.02
  6. Step 6: Final answer
    x = 10,657.26

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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.