Home / 16,786.77-23,165.58-9,618

Finding the Fourth Proportional to 16,786.77, 23,165.58 and 9,618

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Solution

The fourth proportional to 16,786.77, 23,165.58 and 9,618 is: 13,272.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,786.77 : 23,165.58 = 9,618 : x
  2. Step 2: Convert to fraction form
    16,786.77/23,165.58 = 9,618/x
  3. Step 3: Cross multiply
    16,786.77x = 23,165.58 × 9,618
  4. Step 4: Simplify right side
    16,786.77x = 222,806,548.44
  5. Step 5: Solve for x
    x = 222,806,548.44/16,786.77
  6. Step 6: Final answer
    x = 13,272.75

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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.