Home / 8,719.48-13,075.13-3,168.91

Finding the Fourth Proportional to 8,719.48, 13,075.13 and 3,168.91

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Solution

The fourth proportional to 8,719.48, 13,075.13 and 3,168.91 is: 4,751.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.48 : 13,075.13 = 3,168.91 : x
  2. Step 2: Convert to fraction form
    8,719.48/13,075.13 = 3,168.91/x
  3. Step 3: Cross multiply
    8,719.48x = 13,075.13 × 3,168.91
  4. Step 4: Simplify right side
    8,719.48x = 41,433,894.36
  5. Step 5: Solve for x
    x = 41,433,894.36/8,719.48
  6. Step 6: Final answer
    x = 4,751.88

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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.