Home / 11,085.10-16,631.60-6,920.30

Finding the Fourth Proportional to 11,085.10, 16,631.60 and 6,920.30

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Solution

The fourth proportional to 11,085.10, 16,631.60 and 6,920.30 is: 10,382.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,085.10 : 16,631.60 = 6,920.30 : x
  2. Step 2: Convert to fraction form
    11,085.10/16,631.60 = 6,920.30/x
  3. Step 3: Cross multiply
    11,085.10x = 16,631.60 × 6,920.30
  4. Step 4: Simplify right side
    11,085.10x = 115,095,668.46
  5. Step 5: Solve for x
    x = 115,095,668.46/11,085.10
  6. Step 6: Final answer
    x = 10,382.91

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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.