Home / 12,075.30-18,098.37-8,780.22

Finding the Fourth Proportional to 12,075.30, 18,098.37 and 8,780.22

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Solution

The fourth proportional to 12,075.30, 18,098.37 and 8,780.22 is: 13,159.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,075.30 : 18,098.37 = 8,780.22 : x
  2. Step 2: Convert to fraction form
    12,075.30/18,098.37 = 8,780.22/x
  3. Step 3: Cross multiply
    12,075.30x = 18,098.37 × 8,780.22
  4. Step 4: Simplify right side
    12,075.30x = 158,907,670.24
  5. Step 5: Solve for x
    x = 158,907,670.24/12,075.30
  6. Step 6: Final answer
    x = 13,159.73

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1.5x scale

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.