Home / 11,890.58-16,409.85-7,110.68

Finding the Fourth Proportional to 11,890.58, 16,409.85 and 7,110.68

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Solution

The fourth proportional to 11,890.58, 16,409.85 and 7,110.68 is: 9,813.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.58 : 16,409.85 = 7,110.68 : x
  2. Step 2: Convert to fraction form
    11,890.58/16,409.85 = 7,110.68/x
  3. Step 3: Cross multiply
    11,890.58x = 16,409.85 × 7,110.68
  4. Step 4: Simplify right side
    11,890.58x = 116,685,192.20
  5. Step 5: Solve for x
    x = 116,685,192.20/11,890.58
  6. Step 6: Final answer
    x = 9,813.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.