Home / 18,271.84-25,215.60-11,202.16

Finding the Fourth Proportional to 18,271.84, 25,215.60 and 11,202.16

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Solution

The fourth proportional to 18,271.84, 25,215.60 and 11,202.16 is: 15,459.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.84 : 25,215.60 = 11,202.16 : x
  2. Step 2: Convert to fraction form
    18,271.84/25,215.60 = 11,202.16/x
  3. Step 3: Cross multiply
    18,271.84x = 25,215.60 × 11,202.16
  4. Step 4: Simplify right side
    18,271.84x = 282,469,185.70
  5. Step 5: Solve for x
    x = 282,469,185.70/18,271.84
  6. Step 6: Final answer
    x = 15,459.26

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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.