Home / 19,819.72-27,351.40-10,866.98

Finding the Fourth Proportional to 19,819.72, 27,351.40 and 10,866.98

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Solution

The fourth proportional to 19,819.72, 27,351.40 and 10,866.98 is: 14,996.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,819.72 : 27,351.40 = 10,866.98 : x
  2. Step 2: Convert to fraction form
    19,819.72/27,351.40 = 10,866.98/x
  3. Step 3: Cross multiply
    19,819.72x = 27,351.40 × 10,866.98
  4. Step 4: Simplify right side
    19,819.72x = 297,227,116.77
  5. Step 5: Solve for x
    x = 297,227,116.77/19,819.72
  6. Step 6: Final answer
    x = 14,996.53

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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.