Home / 18,617.88-25,714.61-12,319.32

Finding the Fourth Proportional to 18,617.88, 25,714.61 and 12,319.32

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Solution

The fourth proportional to 18,617.88, 25,714.61 and 12,319.32 is: 17,015.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,617.88 : 25,714.61 = 12,319.32 : x
  2. Step 2: Convert to fraction form
    18,617.88/25,714.61 = 12,319.32/x
  3. Step 3: Cross multiply
    18,617.88x = 25,714.61 × 12,319.32
  4. Step 4: Simplify right side
    18,617.88x = 316,786,509.27
  5. Step 5: Solve for x
    x = 316,786,509.27/18,617.88
  6. Step 6: Final answer
    x = 17,015.18

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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.