Home / 18,817.56-25,980.48-12,847.05

Finding the Fourth Proportional to 18,817.56, 25,980.48 and 12,847.05

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Solution

The fourth proportional to 18,817.56, 25,980.48 and 12,847.05 is: 17,737.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,817.56 : 25,980.48 = 12,847.05 : x
  2. Step 2: Convert to fraction form
    18,817.56/25,980.48 = 12,847.05/x
  3. Step 3: Cross multiply
    18,817.56x = 25,980.48 × 12,847.05
  4. Step 4: Simplify right side
    18,817.56x = 333,772,525.58
  5. Step 5: Solve for x
    x = 333,772,525.58/18,817.56
  6. Step 6: Final answer
    x = 17,737.29

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Double scale
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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.