Home / 18,617.63-25,714.26-12,319.07

Finding the Fourth Proportional to 18,617.63, 25,714.26 and 12,319.07

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Solution

The fourth proportional to 18,617.63, 25,714.26 and 12,319.07 is: 17,014.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,617.63 : 25,714.26 = 12,319.07 : x
  2. Step 2: Convert to fraction form
    18,617.63/25,714.26 = 12,319.07/x
  3. Step 3: Cross multiply
    18,617.63x = 25,714.26 × 12,319.07
  4. Step 4: Simplify right side
    18,617.63x = 316,775,640.37
  5. Step 5: Solve for x
    x = 316,775,640.37/18,617.63
  6. Step 6: Final answer
    x = 17,014.83

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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.