Home / 11,712.30-16,162.82-6,407.06

Finding the Fourth Proportional to 11,712.30, 16,162.82 and 6,407.06

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Solution

The fourth proportional to 11,712.30, 16,162.82 and 6,407.06 is: 8,841.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,712.30 : 16,162.82 = 6,407.06 : x
  2. Step 2: Convert to fraction form
    11,712.30/16,162.82 = 6,407.06/x
  3. Step 3: Cross multiply
    11,712.30x = 16,162.82 × 6,407.06
  4. Step 4: Simplify right side
    11,712.30x = 103,556,157.51
  5. Step 5: Solve for x
    x = 103,556,157.51/11,712.30
  6. Step 6: Final answer
    x = 8,841.66

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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.