Home / 13,692.96-20,552.28-7,123.80

Finding the Fourth Proportional to 13,692.96, 20,552.28 and 7,123.80

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Solution

The fourth proportional to 13,692.96, 20,552.28 and 7,123.80 is: 10,692.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,692.96 : 20,552.28 = 7,123.80 : x
  2. Step 2: Convert to fraction form
    13,692.96/20,552.28 = 7,123.80/x
  3. Step 3: Cross multiply
    13,692.96x = 20,552.28 × 7,123.80
  4. Step 4: Simplify right side
    13,692.96x = 146,410,332.26
  5. Step 5: Solve for x
    x = 146,410,332.26/13,692.96
  6. Step 6: Final answer
    x = 10,692.38

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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.