Home / 15,891.64-21,895.08-11,635.48

Finding the Fourth Proportional to 15,891.64, 21,895.08 and 11,635.48

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Solution

The fourth proportional to 15,891.64, 21,895.08 and 11,635.48 is: 16,031.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,891.64 : 21,895.08 = 11,635.48 : x
  2. Step 2: Convert to fraction form
    15,891.64/21,895.08 = 11,635.48/x
  3. Step 3: Cross multiply
    15,891.64x = 21,895.08 × 11,635.48
  4. Step 4: Simplify right side
    15,891.64x = 254,759,765.44
  5. Step 5: Solve for x
    x = 254,759,765.44/15,891.64
  6. Step 6: Final answer
    x = 16,031.06

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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.