Home / 12,257.81-18,384.27-3,370.83

Finding the Fourth Proportional to 12,257.81, 18,384.27 and 3,370.83

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Solution

The fourth proportional to 12,257.81, 18,384.27 and 3,370.83 is: 5,055.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.81 : 18,384.27 = 3,370.83 : x
  2. Step 2: Convert to fraction form
    12,257.81/18,384.27 = 3,370.83/x
  3. Step 3: Cross multiply
    12,257.81x = 18,384.27 × 3,370.83
  4. Step 4: Simplify right side
    12,257.81x = 61,970,248.84
  5. Step 5: Solve for x
    x = 61,970,248.84/12,257.81
  6. Step 6: Final answer
    x = 5,055.57

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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.