Home / 15,739.80-23,588.10-12,823.80

Finding the Fourth Proportional to 15,739.80, 23,588.10 and 12,823.80

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Solution

The fourth proportional to 15,739.80, 23,588.10 and 12,823.80 is: 19,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,739.80 : 23,588.10 = 12,823.80 : x
  2. Step 2: Convert to fraction form
    15,739.80/23,588.10 = 12,823.80/x
  3. Step 3: Cross multiply
    15,739.80x = 23,588.10 × 12,823.80
  4. Step 4: Simplify right side
    15,739.80x = 302,489,076.78
  5. Step 5: Solve for x
    x = 302,489,076.78/15,739.80
  6. Step 6: Final answer
    x = 19,218.10

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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.