Home / 15,912.61-23,871.50-5,383.27

Finding the Fourth Proportional to 15,912.61, 23,871.50 and 5,383.27

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Solution

The fourth proportional to 15,912.61, 23,871.50 and 5,383.27 is: 8,075.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,912.61 : 23,871.50 = 5,383.27 : x
  2. Step 2: Convert to fraction form
    15,912.61/23,871.50 = 5,383.27/x
  3. Step 3: Cross multiply
    15,912.61x = 23,871.50 × 5,383.27
  4. Step 4: Simplify right side
    15,912.61x = 128,506,702.89
  5. Step 5: Solve for x
    x = 128,506,702.89/15,912.61
  6. Step 6: Final answer
    x = 8,075.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.