Home / 7,021.12-9,692.68-4,369.40

Finding the Fourth Proportional to 7,021.12, 9,692.68 and 4,369.40

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Solution

The fourth proportional to 7,021.12, 9,692.68 and 4,369.40 is: 6,031.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.12 : 9,692.68 = 4,369.40 : x
  2. Step 2: Convert to fraction form
    7,021.12/9,692.68 = 4,369.40/x
  3. Step 3: Cross multiply
    7,021.12x = 9,692.68 × 4,369.40
  4. Step 4: Simplify right side
    7,021.12x = 42,351,195.99
  5. Step 5: Solve for x
    x = 42,351,195.99/7,021.12
  6. Step 6: Final answer
    x = 6,031.97

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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.