Home / 12,589.44-18,858.22-7,382.76

Finding the Fourth Proportional to 12,589.44, 18,858.22 and 7,382.76

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Solution

The fourth proportional to 12,589.44, 18,858.22 and 7,382.76 is: 11,058.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589.44 : 18,858.22 = 7,382.76 : x
  2. Step 2: Convert to fraction form
    12,589.44/18,858.22 = 7,382.76/x
  3. Step 3: Cross multiply
    12,589.44x = 18,858.22 × 7,382.76
  4. Step 4: Simplify right side
    12,589.44x = 139,225,712.29
  5. Step 5: Solve for x
    x = 139,225,712.29/12,589.44
  6. Step 6: Final answer
    x = 11,058.93

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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.