Home / 18,814.03-25,980.93-12,111.29

Finding the Fourth Proportional to 18,814.03, 25,980.93 and 12,111.29

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Solution

The fourth proportional to 18,814.03, 25,980.93 and 12,111.29 is: 16,724.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,814.03 : 25,980.93 = 12,111.29 : x
  2. Step 2: Convert to fraction form
    18,814.03/25,980.93 = 12,111.29/x
  3. Step 3: Cross multiply
    18,814.03x = 25,980.93 × 12,111.29
  4. Step 4: Simplify right side
    18,814.03x = 314,662,577.70
  5. Step 5: Solve for x
    x = 314,662,577.70/18,814.03
  6. Step 6: Final answer
    x = 16,724.89

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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.