Home / 19,821.08-27,353.07-10,868.72

Finding the Fourth Proportional to 19,821.08, 27,353.07 and 10,868.72

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Solution

The fourth proportional to 19,821.08, 27,353.07 and 10,868.72 is: 14,998.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,821.08 : 27,353.07 = 10,868.72 : x
  2. Step 2: Convert to fraction form
    19,821.08/27,353.07 = 10,868.72/x
  3. Step 3: Cross multiply
    19,821.08x = 27,353.07 × 10,868.72
  4. Step 4: Simplify right side
    19,821.08x = 297,292,927.35
  5. Step 5: Solve for x
    x = 297,292,927.35/19,821.08
  6. Step 6: Final answer
    x = 14,998.83

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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.