Home / 11,111.83-15,335.13-6,635.77

Finding the Fourth Proportional to 11,111.83, 15,335.13 and 6,635.77

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Solution

The fourth proportional to 11,111.83, 15,335.13 and 6,635.77 is: 9,157.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,111.83 : 15,335.13 = 6,635.77 : x
  2. Step 2: Convert to fraction form
    11,111.83/15,335.13 = 6,635.77/x
  3. Step 3: Cross multiply
    11,111.83x = 15,335.13 × 6,635.77
  4. Step 4: Simplify right side
    11,111.83x = 101,760,395.60
  5. Step 5: Solve for x
    x = 101,760,395.60/11,111.83
  6. Step 6: Final answer
    x = 9,157.84

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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.