Home / 15,157.94-20,912.16-9,490.34

Finding the Fourth Proportional to 15,157.94, 20,912.16 and 9,490.34

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Solution

The fourth proportional to 15,157.94, 20,912.16 and 9,490.34 is: 13,093.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,157.94 : 20,912.16 = 9,490.34 : x
  2. Step 2: Convert to fraction form
    15,157.94/20,912.16 = 9,490.34/x
  3. Step 3: Cross multiply
    15,157.94x = 20,912.16 × 9,490.34
  4. Step 4: Simplify right side
    15,157.94x = 198,463,508.53
  5. Step 5: Solve for x
    x = 198,463,508.53/15,157.94
  6. Step 6: Final answer
    x = 13,093.04

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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.