Home / 12,317.58-18,446.86-8,976.87

Finding the Fourth Proportional to 12,317.58, 18,446.86 and 8,976.87

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Solution

The fourth proportional to 12,317.58, 18,446.86 and 8,976.87 is: 13,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,317.58 : 18,446.86 = 8,976.87 : x
  2. Step 2: Convert to fraction form
    12,317.58/18,446.86 = 8,976.87/x
  3. Step 3: Cross multiply
    12,317.58x = 18,446.86 × 8,976.87
  4. Step 4: Simplify right side
    12,317.58x = 165,595,064.13
  5. Step 5: Solve for x
    x = 165,595,064.13/12,317.58
  6. Step 6: Final answer
    x = 13,443.80

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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.