Home / 10,647.65-15,967.83-4,075.72

Finding the Fourth Proportional to 10,647.65, 15,967.83 and 4,075.72

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Solution

The fourth proportional to 10,647.65, 15,967.83 and 4,075.72 is: 6,112.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,647.65 : 15,967.83 = 4,075.72 : x
  2. Step 2: Convert to fraction form
    10,647.65/15,967.83 = 4,075.72/x
  3. Step 3: Cross multiply
    10,647.65x = 15,967.83 × 4,075.72
  4. Step 4: Simplify right side
    10,647.65x = 65,080,379.45
  5. Step 5: Solve for x
    x = 65,080,379.45/10,647.65
  6. Step 6: Final answer
    x = 6,112.18

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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.