Home / 14,004.12-21,005.10-3,615.60

Finding the Fourth Proportional to 14,004.12, 21,005.10 and 3,615.60

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Solution

The fourth proportional to 14,004.12, 21,005.10 and 3,615.60 is: 5,423.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,004.12 : 21,005.10 = 3,615.60 : x
  2. Step 2: Convert to fraction form
    14,004.12/21,005.10 = 3,615.60/x
  3. Step 3: Cross multiply
    14,004.12x = 21,005.10 × 3,615.60
  4. Step 4: Simplify right side
    14,004.12x = 75,946,039.56
  5. Step 5: Solve for x
    x = 75,946,039.56/14,004.12
  6. Step 6: Final answer
    x = 5,423.12

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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.