Home / 11,681.16-16,120.36-6,376.32

Finding the Fourth Proportional to 11,681.16, 16,120.36 and 6,376.32

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Solution

The fourth proportional to 11,681.16, 16,120.36 and 6,376.32 is: 8,799.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681.16 : 16,120.36 = 6,376.32 : x
  2. Step 2: Convert to fraction form
    11,681.16/16,120.36 = 6,376.32/x
  3. Step 3: Cross multiply
    11,681.16x = 16,120.36 × 6,376.32
  4. Step 4: Simplify right side
    11,681.16x = 102,788,573.88
  5. Step 5: Solve for x
    x = 102,788,573.88/11,681.16
  6. Step 6: Final answer
    x = 8,799.52

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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.