Home / 19,566.77-26,999.12-12,855.11

Finding the Fourth Proportional to 19,566.77, 26,999.12 and 12,855.11

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Solution

The fourth proportional to 19,566.77, 26,999.12 and 12,855.11 is: 17,738.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,566.77 : 26,999.12 = 12,855.11 : x
  2. Step 2: Convert to fraction form
    19,566.77/26,999.12 = 12,855.11/x
  3. Step 3: Cross multiply
    19,566.77x = 26,999.12 × 12,855.11
  4. Step 4: Simplify right side
    19,566.77x = 347,076,554.65
  5. Step 5: Solve for x
    x = 347,076,554.65/19,566.77
  6. Step 6: Final answer
    x = 17,738.07

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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.