Home / 18,821.46-25,962.21-12,448.02

Finding the Fourth Proportional to 18,821.46, 25,962.21 and 12,448.02

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Solution

The fourth proportional to 18,821.46, 25,962.21 and 12,448.02 is: 17,170.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.46 : 25,962.21 = 12,448.02 : x
  2. Step 2: Convert to fraction form
    18,821.46/25,962.21 = 12,448.02/x
  3. Step 3: Cross multiply
    18,821.46x = 25,962.21 × 12,448.02
  4. Step 4: Simplify right side
    18,821.46x = 323,178,109.32
  5. Step 5: Solve for x
    x = 323,178,109.32/18,821.46
  6. Step 6: Final answer
    x = 17,170.72

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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.