Home / 18,986.04-26,192.70-12,700.44

Finding the Fourth Proportional to 18,986.04, 26,192.70 and 12,700.44

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Solution

The fourth proportional to 18,986.04, 26,192.70 and 12,700.44 is: 17,521.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986.04 : 26,192.70 = 12,700.44 : x
  2. Step 2: Convert to fraction form
    18,986.04/26,192.70 = 12,700.44/x
  3. Step 3: Cross multiply
    18,986.04x = 26,192.70 × 12,700.44
  4. Step 4: Simplify right side
    18,986.04x = 332,658,814.79
  5. Step 5: Solve for x
    x = 332,658,814.79/18,986.04
  6. Step 6: Final answer
    x = 17,521.23

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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.