Home / 18,714.36-25,830.16-12,342.11

Finding the Fourth Proportional to 18,714.36, 25,830.16 and 12,342.11

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Solution

The fourth proportional to 18,714.36, 25,830.16 and 12,342.11 is: 17,034.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714.36 : 25,830.16 = 12,342.11 : x
  2. Step 2: Convert to fraction form
    18,714.36/25,830.16 = 12,342.11/x
  3. Step 3: Cross multiply
    18,714.36x = 25,830.16 × 12,342.11
  4. Step 4: Simplify right side
    18,714.36x = 318,798,546.89
  5. Step 5: Solve for x
    x = 318,798,546.89/18,714.36
  6. Step 6: Final answer
    x = 17,034.97

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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.