Home / 18,232.12-25,158.90-11,157.58

Finding the Fourth Proportional to 18,232.12, 25,158.90 and 11,157.58

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Solution

The fourth proportional to 18,232.12, 25,158.90 and 11,157.58 is: 15,396.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,232.12 : 25,158.90 = 11,157.58 : x
  2. Step 2: Convert to fraction form
    18,232.12/25,158.90 = 11,157.58/x
  3. Step 3: Cross multiply
    18,232.12x = 25,158.90 × 11,157.58
  4. Step 4: Simplify right side
    18,232.12x = 280,712,439.46
  5. Step 5: Solve for x
    x = 280,712,439.46/18,232.12
  6. Step 6: Final answer
    x = 15,396.59

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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.