Home / 19,115.31-26,379.44-10,731.63

Finding the Fourth Proportional to 19,115.31, 26,379.44 and 10,731.63

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Solution

The fourth proportional to 19,115.31, 26,379.44 and 10,731.63 is: 14,809.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,115.31 : 26,379.44 = 10,731.63 : x
  2. Step 2: Convert to fraction form
    19,115.31/26,379.44 = 10,731.63/x
  3. Step 3: Cross multiply
    19,115.31x = 26,379.44 × 10,731.63
  4. Step 4: Simplify right side
    19,115.31x = 283,094,336.03
  5. Step 5: Solve for x
    x = 283,094,336.03/19,115.31
  6. Step 6: Final answer
    x = 14,809.82

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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.