Home / 14,514.60-21,714.30-12,588.20

Finding the Fourth Proportional to 14,514.60, 21,714.30 and 12,588.20

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Solution

The fourth proportional to 14,514.60, 21,714.30 and 12,588.20 is: 18,832.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,514.60 : 21,714.30 = 12,588.20 : x
  2. Step 2: Convert to fraction form
    14,514.60/21,714.30 = 12,588.20/x
  3. Step 3: Cross multiply
    14,514.60x = 21,714.30 × 12,588.20
  4. Step 4: Simplify right side
    14,514.60x = 273,343,951.26
  5. Step 5: Solve for x
    x = 273,343,951.26/14,514.60
  6. Step 6: Final answer
    x = 18,832.34

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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.