Home / 18,899.26-26,080.98-10,515.76

Finding the Fourth Proportional to 18,899.26, 26,080.98 and 10,515.76

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Solution

The fourth proportional to 18,899.26, 26,080.98 and 10,515.76 is: 14,511.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,899.26 : 26,080.98 = 10,515.76 : x
  2. Step 2: Convert to fraction form
    18,899.26/26,080.98 = 10,515.76/x
  3. Step 3: Cross multiply
    18,899.26x = 26,080.98 × 10,515.76
  4. Step 4: Simplify right side
    18,899.26x = 274,261,326.24
  5. Step 5: Solve for x
    x = 274,261,326.24/18,899.26
  6. Step 6: Final answer
    x = 14,511.75

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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.