Home / 19,376.69-26,688.91-14,891.86

Finding the Fourth Proportional to 19,376.69, 26,688.91 and 14,891.86

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Solution

The fourth proportional to 19,376.69, 26,688.91 and 14,891.86 is: 20,511.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,376.69 : 26,688.91 = 14,891.86 : x
  2. Step 2: Convert to fraction form
    19,376.69/26,688.91 = 14,891.86/x
  3. Step 3: Cross multiply
    19,376.69x = 26,688.91 × 14,891.86
  4. Step 4: Simplify right side
    19,376.69x = 397,447,436.81
  5. Step 5: Solve for x
    x = 397,447,436.81/19,376.69
  6. Step 6: Final answer
    x = 20,511.63

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Half scale
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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.