Home / 11,805.22-16,291.32-6,500.20

Finding the Fourth Proportional to 11,805.22, 16,291.32 and 6,500.20

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Solution

The fourth proportional to 11,805.22, 16,291.32 and 6,500.20 is: 8,970.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,805.22 : 16,291.32 = 6,500.20 : x
  2. Step 2: Convert to fraction form
    11,805.22/16,291.32 = 6,500.20/x
  3. Step 3: Cross multiply
    11,805.22x = 16,291.32 × 6,500.20
  4. Step 4: Simplify right side
    11,805.22x = 105,896,838.26
  5. Step 5: Solve for x
    x = 105,896,838.26/11,805.22
  6. Step 6: Final answer
    x = 8,970.34

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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.