Home / 12,010.48-18,010.49-3,685.91

Finding the Fourth Proportional to 12,010.48, 18,010.49 and 3,685.91

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Solution

The fourth proportional to 12,010.48, 18,010.49 and 3,685.91 is: 5,527.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,010.48 : 18,010.49 = 3,685.91 : x
  2. Step 2: Convert to fraction form
    12,010.48/18,010.49 = 3,685.91/x
  3. Step 3: Cross multiply
    12,010.48x = 18,010.49 × 3,685.91
  4. Step 4: Simplify right side
    12,010.48x = 66,384,936.71
  5. Step 5: Solve for x
    x = 66,384,936.71/12,010.48
  6. Step 6: Final answer
    x = 5,527.25

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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.