Home / 15,985.36-23,982.72-8,199.60

Finding the Fourth Proportional to 15,985.36, 23,982.72 and 8,199.60

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Solution

The fourth proportional to 15,985.36, 23,982.72 and 8,199.60 is: 12,301.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,985.36 : 23,982.72 = 8,199.60 : x
  2. Step 2: Convert to fraction form
    15,985.36/23,982.72 = 8,199.60/x
  3. Step 3: Cross multiply
    15,985.36x = 23,982.72 × 8,199.60
  4. Step 4: Simplify right side
    15,985.36x = 196,648,710.91
  5. Step 5: Solve for x
    x = 196,648,710.91/15,985.36
  6. Step 6: Final answer
    x = 12,301.80

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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.