Home / 11,878.46-16,386.96-6,841.36

Finding the Fourth Proportional to 11,878.46, 16,386.96 and 6,841.36

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Solution

The fourth proportional to 11,878.46, 16,386.96 and 6,841.36 is: 9,438.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,878.46 : 16,386.96 = 6,841.36 : x
  2. Step 2: Convert to fraction form
    11,878.46/16,386.96 = 6,841.36/x
  3. Step 3: Cross multiply
    11,878.46x = 16,386.96 × 6,841.36
  4. Step 4: Simplify right side
    11,878.46x = 112,109,092.67
  5. Step 5: Solve for x
    x = 112,109,092.67/11,878.46
  6. Step 6: Final answer
    x = 9,438.02

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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.