Home / 19,105.58-26,376.68-12,730.50

Finding the Fourth Proportional to 19,105.58, 26,376.68 and 12,730.50

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Solution

The fourth proportional to 19,105.58, 26,376.68 and 12,730.50 is: 17,575.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105.58 : 26,376.68 = 12,730.50 : x
  2. Step 2: Convert to fraction form
    19,105.58/26,376.68 = 12,730.50/x
  3. Step 3: Cross multiply
    19,105.58x = 26,376.68 × 12,730.50
  4. Step 4: Simplify right side
    19,105.58x = 335,788,324.74
  5. Step 5: Solve for x
    x = 335,788,324.74/19,105.58
  6. Step 6: Final answer
    x = 17,575.41

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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.