Home / 14,504.31-20,019.57-8,912.07

Finding the Fourth Proportional to 14,504.31, 20,019.57 and 8,912.07

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Solution

The fourth proportional to 14,504.31, 20,019.57 and 8,912.07 is: 12,300.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,504.31 : 20,019.57 = 8,912.07 : x
  2. Step 2: Convert to fraction form
    14,504.31/20,019.57 = 8,912.07/x
  3. Step 3: Cross multiply
    14,504.31x = 20,019.57 × 8,912.07
  4. Step 4: Simplify right side
    14,504.31x = 178,415,809.21
  5. Step 5: Solve for x
    x = 178,415,809.21/14,504.31
  6. Step 6: Final answer
    x = 12,300.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.