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Finding the Fourth Proportional to 8,571.77, 11,828.27 and 5,427.89

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Solution

The fourth proportional to 8,571.77, 11,828.27 and 5,427.89 is: 7,490.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,571.77 : 11,828.27 = 5,427.89 : x
  2. Step 2: Convert to fraction form
    8,571.77/11,828.27 = 5,427.89/x
  3. Step 3: Cross multiply
    8,571.77x = 11,828.27 × 5,427.89
  4. Step 4: Simplify right side
    8,571.77x = 64,202,521.31
  5. Step 5: Solve for x
    x = 64,202,521.31/8,571.77
  6. Step 6: Final answer
    x = 7,490.00

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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.