Home / 7,109.04-10,663.92-1,914.96

Finding the Fourth Proportional to 7,109.04, 10,663.92 and 1,914.96

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Solution

The fourth proportional to 7,109.04, 10,663.92 and 1,914.96 is: 2,872.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,109.04 : 10,663.92 = 1,914.96 : x
  2. Step 2: Convert to fraction form
    7,109.04/10,663.92 = 1,914.96/x
  3. Step 3: Cross multiply
    7,109.04x = 10,663.92 × 1,914.96
  4. Step 4: Simplify right side
    7,109.04x = 20,420,980.24
  5. Step 5: Solve for x
    x = 20,420,980.24/7,109.04
  6. Step 6: Final answer
    x = 2,872.54

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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.