Home / 11,019.04-15,198.41-7,783.65

Finding the Fourth Proportional to 11,019.04, 15,198.41 and 7,783.65

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Solution

The fourth proportional to 11,019.04, 15,198.41 and 7,783.65 is: 10,735.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,019.04 : 15,198.41 = 7,783.65 : x
  2. Step 2: Convert to fraction form
    11,019.04/15,198.41 = 7,783.65/x
  3. Step 3: Cross multiply
    11,019.04x = 15,198.41 × 7,783.65
  4. Step 4: Simplify right side
    11,019.04x = 118,299,123.46
  5. Step 5: Solve for x
    x = 118,299,123.46/11,019.04
  6. Step 6: Final answer
    x = 10,735.89

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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.