Home / 13,229.16-19,714.90-12,828.68

Finding the Fourth Proportional to 13,229.16, 19,714.90 and 12,828.68

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Solution

The fourth proportional to 13,229.16, 19,714.90 and 12,828.68 is: 19,118.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,229.16 : 19,714.90 = 12,828.68 : x
  2. Step 2: Convert to fraction form
    13,229.16/19,714.90 = 12,828.68/x
  3. Step 3: Cross multiply
    13,229.16x = 19,714.90 × 12,828.68
  4. Step 4: Simplify right side
    13,229.16x = 252,916,175.40
  5. Step 5: Solve for x
    x = 252,916,175.40/13,229.16
  6. Step 6: Final answer
    x = 19,118.08

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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.