Home / 8,075.50-11,148.06-6,279.42

Finding the Fourth Proportional to 8,075.50, 11,148.06 and 6,279.42

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Solution

The fourth proportional to 8,075.50, 11,148.06 and 6,279.42 is: 8,668.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075.50 : 11,148.06 = 6,279.42 : x
  2. Step 2: Convert to fraction form
    8,075.50/11,148.06 = 6,279.42/x
  3. Step 3: Cross multiply
    8,075.50x = 11,148.06 × 6,279.42
  4. Step 4: Simplify right side
    8,075.50x = 70,003,403.03
  5. Step 5: Solve for x
    x = 70,003,403.03/8,075.50
  6. Step 6: Final answer
    x = 8,668.62

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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.