Home / 12,216.96-18,336.24-8,045.28

Finding the Fourth Proportional to 12,216.96, 18,336.24 and 8,045.28

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Solution

The fourth proportional to 12,216.96, 18,336.24 and 8,045.28 is: 12,075.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.96 : 18,336.24 = 8,045.28 : x
  2. Step 2: Convert to fraction form
    12,216.96/18,336.24 = 8,045.28/x
  3. Step 3: Cross multiply
    12,216.96x = 18,336.24 × 8,045.28
  4. Step 4: Simplify right side
    12,216.96x = 147,520,184.95
  5. Step 5: Solve for x
    x = 147,520,184.95/12,216.96
  6. Step 6: Final answer
    x = 12,075.03

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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.