Home / 18,840.48-26,004.64-12,874.56

Finding the Fourth Proportional to 18,840.48, 26,004.64 and 12,874.56

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Solution

The fourth proportional to 18,840.48, 26,004.64 and 12,874.56 is: 17,770.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840.48 : 26,004.64 = 12,874.56 : x
  2. Step 2: Convert to fraction form
    18,840.48/26,004.64 = 12,874.56/x
  3. Step 3: Cross multiply
    18,840.48x = 26,004.64 × 12,874.56
  4. Step 4: Simplify right side
    18,840.48x = 334,798,297.96
  5. Step 5: Solve for x
    x = 334,798,297.96/18,840.48
  6. Step 6: Final answer
    x = 17,770.16

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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.