Home / 19,115.25-26,379.35-10,731.57

Finding the Fourth Proportional to 19,115.25, 26,379.35 and 10,731.57

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Solution

The fourth proportional to 19,115.25, 26,379.35 and 10,731.57 is: 14,809.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,115.25 : 26,379.35 = 10,731.57 : x
  2. Step 2: Convert to fraction form
    19,115.25/26,379.35 = 10,731.57/x
  3. Step 3: Cross multiply
    19,115.25x = 26,379.35 × 10,731.57
  4. Step 4: Simplify right side
    19,115.25x = 283,091,841.08
  5. Step 5: Solve for x
    x = 283,091,841.08/19,115.25
  6. Step 6: Final answer
    x = 14,809.74

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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.