Home / 12,714.18-18,977.75-11,822.82

Finding the Fourth Proportional to 12,714.18, 18,977.75 and 11,822.82

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Solution

The fourth proportional to 12,714.18, 18,977.75 and 11,822.82 is: 17,647.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,714.18 : 18,977.75 = 11,822.82 : x
  2. Step 2: Convert to fraction form
    12,714.18/18,977.75 = 11,822.82/x
  3. Step 3: Cross multiply
    12,714.18x = 18,977.75 × 11,822.82
  4. Step 4: Simplify right side
    12,714.18x = 224,370,463.14
  5. Step 5: Solve for x
    x = 224,370,463.14/12,714.18
  6. Step 6: Final answer
    x = 17,647.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.