Home / 18,405.09-27,607.77-5,257.62

Finding the Fourth Proportional to 18,405.09, 27,607.77 and 5,257.62

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Solution

The fourth proportional to 18,405.09, 27,607.77 and 5,257.62 is: 7,886.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405.09 : 27,607.77 = 5,257.62 : x
  2. Step 2: Convert to fraction form
    18,405.09/27,607.77 = 5,257.62/x
  3. Step 3: Cross multiply
    18,405.09x = 27,607.77 × 5,257.62
  4. Step 4: Simplify right side
    18,405.09x = 145,151,163.71
  5. Step 5: Solve for x
    x = 145,151,163.71/18,405.09
  6. Step 6: Final answer
    x = 7,886.47

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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.