Home / 12,078.22-16,668.12-9,047.98

Finding the Fourth Proportional to 12,078.22, 16,668.12 and 9,047.98

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Solution

The fourth proportional to 12,078.22, 16,668.12 and 9,047.98 is: 12,486.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078.22 : 16,668.12 = 9,047.98 : x
  2. Step 2: Convert to fraction form
    12,078.22/16,668.12 = 9,047.98/x
  3. Step 3: Cross multiply
    12,078.22x = 16,668.12 × 9,047.98
  4. Step 4: Simplify right side
    12,078.22x = 150,812,782.76
  5. Step 5: Solve for x
    x = 150,812,782.76/12,078.22
  6. Step 6: Final answer
    x = 12,486.34

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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.