Home / 12,561.37-18,842.45-6,317.97

Finding the Fourth Proportional to 12,561.37, 18,842.45 and 6,317.97

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Solution

The fourth proportional to 12,561.37, 18,842.45 and 6,317.97 is: 9,477.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.37 : 18,842.45 = 6,317.97 : x
  2. Step 2: Convert to fraction form
    12,561.37/18,842.45 = 6,317.97/x
  3. Step 3: Cross multiply
    12,561.37x = 18,842.45 × 6,317.97
  4. Step 4: Simplify right side
    12,561.37x = 119,046,049.62
  5. Step 5: Solve for x
    x = 119,046,049.62/12,561.37
  6. Step 6: Final answer
    x = 9,477.16

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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.