Home / 9,197.49-12,692.42-5,420.82

Finding the Fourth Proportional to 9,197.49, 12,692.42 and 5,420.82

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Solution

The fourth proportional to 9,197.49, 12,692.42 and 5,420.82 is: 7,480.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,197.49 : 12,692.42 = 5,420.82 : x
  2. Step 2: Convert to fraction form
    9,197.49/12,692.42 = 5,420.82/x
  3. Step 3: Cross multiply
    9,197.49x = 12,692.42 × 5,420.82
  4. Step 4: Simplify right side
    9,197.49x = 68,803,337.74
  5. Step 5: Solve for x
    x = 68,803,337.74/9,197.49
  6. Step 6: Final answer
    x = 7,480.66

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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.