Home / 19,279.72-26,605.83-10,781.74

Finding the Fourth Proportional to 19,279.72, 26,605.83 and 10,781.74

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Solution

The fourth proportional to 19,279.72, 26,605.83 and 10,781.74 is: 14,878.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,279.72 : 26,605.83 = 10,781.74 : x
  2. Step 2: Convert to fraction form
    19,279.72/26,605.83 = 10,781.74/x
  3. Step 3: Cross multiply
    19,279.72x = 26,605.83 × 10,781.74
  4. Step 4: Simplify right side
    19,279.72x = 286,857,141.54
  5. Step 5: Solve for x
    x = 286,857,141.54/19,279.72
  6. Step 6: Final answer
    x = 14,878.70

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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.