Home / 10,720.35-16,078.70-2,927.34

Finding the Fourth Proportional to 10,720.35, 16,078.70 and 2,927.34

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Solution

The fourth proportional to 10,720.35, 16,078.70 and 2,927.34 is: 4,390.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.35 : 16,078.70 = 2,927.34 : x
  2. Step 2: Convert to fraction form
    10,720.35/16,078.70 = 2,927.34/x
  3. Step 3: Cross multiply
    10,720.35x = 16,078.70 × 2,927.34
  4. Step 4: Simplify right side
    10,720.35x = 47,067,828.98
  5. Step 5: Solve for x
    x = 47,067,828.98/10,720.35
  6. Step 6: Final answer
    x = 4,390.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.