Home / 12,459.75-18,692.70-6,222.75

Finding the Fourth Proportional to 12,459.75, 18,692.70 and 6,222.75

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Solution

The fourth proportional to 12,459.75, 18,692.70 and 6,222.75 is: 9,335.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459.75 : 18,692.70 = 6,222.75 : x
  2. Step 2: Convert to fraction form
    12,459.75/18,692.70 = 6,222.75/x
  3. Step 3: Cross multiply
    12,459.75x = 18,692.70 × 6,222.75
  4. Step 4: Simplify right side
    12,459.75x = 116,319,998.93
  5. Step 5: Solve for x
    x = 116,319,998.93/12,459.75
  6. Step 6: Final answer
    x = 9,335.66

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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.