Home / 18,317.44-25,282.92-12,653.20

Finding the Fourth Proportional to 18,317.44, 25,282.92 and 12,653.20

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Solution

The fourth proportional to 18,317.44, 25,282.92 and 12,653.20 is: 17,464.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,317.44 : 25,282.92 = 12,653.20 : x
  2. Step 2: Convert to fraction form
    18,317.44/25,282.92 = 12,653.20/x
  3. Step 3: Cross multiply
    18,317.44x = 25,282.92 × 12,653.20
  4. Step 4: Simplify right side
    18,317.44x = 319,909,843.34
  5. Step 5: Solve for x
    x = 319,909,843.34/18,317.44
  6. Step 6: Final answer
    x = 17,464.77

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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.