Home / 8,389.70-11,580.23-5,203.97

Finding the Fourth Proportional to 8,389.70, 11,580.23 and 5,203.97

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Solution

The fourth proportional to 8,389.70, 11,580.23 and 5,203.97 is: 7,182.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.70 : 11,580.23 = 5,203.97 : x
  2. Step 2: Convert to fraction form
    8,389.70/11,580.23 = 5,203.97/x
  3. Step 3: Cross multiply
    8,389.70x = 11,580.23 × 5,203.97
  4. Step 4: Simplify right side
    8,389.70x = 60,263,143.49
  5. Step 5: Solve for x
    x = 60,263,143.49/8,389.70
  6. Step 6: Final answer
    x = 7,182.99

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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.