Home / 14,111.28-21,167.56-7,866.56

Finding the Fourth Proportional to 14,111.28, 21,167.56 and 7,866.56

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Solution

The fourth proportional to 14,111.28, 21,167.56 and 7,866.56 is: 11,800.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,111.28 : 21,167.56 = 7,866.56 : x
  2. Step 2: Convert to fraction form
    14,111.28/21,167.56 = 7,866.56/x
  3. Step 3: Cross multiply
    14,111.28x = 21,167.56 × 7,866.56
  4. Step 4: Simplify right side
    14,111.28x = 166,515,880.79
  5. Step 5: Solve for x
    x = 166,515,880.79/14,111.28
  6. Step 6: Final answer
    x = 11,800.20

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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.