Home / 11,816.75-16,307.51-6,511.77

Finding the Fourth Proportional to 11,816.75, 16,307.51 and 6,511.77

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Solution

The fourth proportional to 11,816.75, 16,307.51 and 6,511.77 is: 8,986.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.75 : 16,307.51 = 6,511.77 : x
  2. Step 2: Convert to fraction form
    11,816.75/16,307.51 = 6,511.77/x
  3. Step 3: Cross multiply
    11,816.75x = 16,307.51 × 6,511.77
  4. Step 4: Simplify right side
    11,816.75x = 106,190,721.83
  5. Step 5: Solve for x
    x = 106,190,721.83/11,816.75
  6. Step 6: Final answer
    x = 8,986.46

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Double scale
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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.