Home / 8,722.10-13,075.40-3,174.41

Finding the Fourth Proportional to 8,722.10, 13,075.40 and 3,174.41

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Solution

The fourth proportional to 8,722.10, 13,075.40 and 3,174.41 is: 4,758.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.10 : 13,075.40 = 3,174.41 : x
  2. Step 2: Convert to fraction form
    8,722.10/13,075.40 = 3,174.41/x
  3. Step 3: Cross multiply
    8,722.10x = 13,075.40 × 3,174.41
  4. Step 4: Simplify right side
    8,722.10x = 41,506,599.26
  5. Step 5: Solve for x
    x = 41,506,599.26/8,722.10
  6. Step 6: Final answer
    x = 4,758.79

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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.