Home / 18,670.37-28,010.74-8,141.31

Finding the Fourth Proportional to 18,670.37, 28,010.74 and 8,141.31

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Solution

The fourth proportional to 18,670.37, 28,010.74 and 8,141.31 is: 12,214.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.37 : 28,010.74 = 8,141.31 : x
  2. Step 2: Convert to fraction form
    18,670.37/28,010.74 = 8,141.31/x
  3. Step 3: Cross multiply
    18,670.37x = 28,010.74 × 8,141.31
  4. Step 4: Simplify right side
    18,670.37x = 228,044,117.67
  5. Step 5: Solve for x
    x = 228,044,117.67/18,670.37
  6. Step 6: Final answer
    x = 12,214.23

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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.