Home / 12,714.12-19,064.03-5,215.61

Finding the Fourth Proportional to 12,714.12, 19,064.03 and 5,215.61

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Solution

The fourth proportional to 12,714.12, 19,064.03 and 5,215.61 is: 7,820.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,714.12 : 19,064.03 = 5,215.61 : x
  2. Step 2: Convert to fraction form
    12,714.12/19,064.03 = 5,215.61/x
  3. Step 3: Cross multiply
    12,714.12x = 19,064.03 × 5,215.61
  4. Step 4: Simplify right side
    12,714.12x = 99,430,567.09
  5. Step 5: Solve for x
    x = 99,430,567.09/12,714.12
  6. Step 6: Final answer
    x = 7,820.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.