Home / 14,111.71-21,166.19-8,563.56

Finding the Fourth Proportional to 14,111.71, 21,166.19 and 8,563.56

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Solution

The fourth proportional to 14,111.71, 21,166.19 and 8,563.56 is: 12,844.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,111.71 : 21,166.19 = 8,563.56 : x
  2. Step 2: Convert to fraction form
    14,111.71/21,166.19 = 8,563.56/x
  3. Step 3: Cross multiply
    14,111.71x = 21,166.19 × 8,563.56
  4. Step 4: Simplify right side
    14,111.71x = 181,257,938.04
  5. Step 5: Solve for x
    x = 181,257,938.04/14,111.71
  6. Step 6: Final answer
    x = 12,844.51

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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.