Home / 14,277.76-21,416.32-3,889.60

Finding the Fourth Proportional to 14,277.76, 21,416.32 and 3,889.60

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Solution

The fourth proportional to 14,277.76, 21,416.32 and 3,889.60 is: 5,834.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,277.76 : 21,416.32 = 3,889.60 : x
  2. Step 2: Convert to fraction form
    14,277.76/21,416.32 = 3,889.60/x
  3. Step 3: Cross multiply
    14,277.76x = 21,416.32 × 3,889.60
  4. Step 4: Simplify right side
    14,277.76x = 83,300,918.27
  5. Step 5: Solve for x
    x = 83,300,918.27/14,277.76
  6. Step 6: Final answer
    x = 5,834.31

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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.