Home / 14,127.92-21,189.48-3,740.72

Finding the Fourth Proportional to 14,127.92, 21,189.48 and 3,740.72

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Solution

The fourth proportional to 14,127.92, 21,189.48 and 3,740.72 is: 5,610.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,127.92 : 21,189.48 = 3,740.72 : x
  2. Step 2: Convert to fraction form
    14,127.92/21,189.48 = 3,740.72/x
  3. Step 3: Cross multiply
    14,127.92x = 21,189.48 × 3,740.72
  4. Step 4: Simplify right side
    14,127.92x = 79,263,911.63
  5. Step 5: Solve for x
    x = 79,263,911.63/14,127.92
  6. Step 6: Final answer
    x = 5,610.44

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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.