Home / 9,189.70-12,681.42-4,997.95

Finding the Fourth Proportional to 9,189.70, 12,681.42 and 4,997.95

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Solution

The fourth proportional to 9,189.70, 12,681.42 and 4,997.95 is: 6,896.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,189.70 : 12,681.42 = 4,997.95 : x
  2. Step 2: Convert to fraction form
    9,189.70/12,681.42 = 4,997.95/x
  3. Step 3: Cross multiply
    9,189.70x = 12,681.42 × 4,997.95
  4. Step 4: Simplify right side
    9,189.70x = 63,381,103.09
  5. Step 5: Solve for x
    x = 63,381,103.09/9,189.70
  6. Step 6: Final answer
    x = 6,896.97

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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.