Home / 15,872.68-21,912.96-10,495.36

Finding the Fourth Proportional to 15,872.68, 21,912.96 and 10,495.36

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Solution

The fourth proportional to 15,872.68, 21,912.96 and 10,495.36 is: 14,489.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,872.68 : 21,912.96 = 10,495.36 : x
  2. Step 2: Convert to fraction form
    15,872.68/21,912.96 = 10,495.36/x
  3. Step 3: Cross multiply
    15,872.68x = 21,912.96 × 10,495.36
  4. Step 4: Simplify right side
    15,872.68x = 229,984,403.87
  5. Step 5: Solve for x
    x = 229,984,403.87/15,872.68
  6. Step 6: Final answer
    x = 14,489.32

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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.