Home / 11,071.87-15,285.53-7,293.65

Finding the Fourth Proportional to 11,071.87, 15,285.53 and 7,293.65

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Solution

The fourth proportional to 11,071.87, 15,285.53 and 7,293.65 is: 10,069.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,071.87 : 15,285.53 = 7,293.65 : x
  2. Step 2: Convert to fraction form
    11,071.87/15,285.53 = 7,293.65/x
  3. Step 3: Cross multiply
    11,071.87x = 15,285.53 × 7,293.65
  4. Step 4: Simplify right side
    11,071.87x = 111,487,247.69
  5. Step 5: Solve for x
    x = 111,487,247.69/11,071.87
  6. Step 6: Final answer
    x = 10,069.42

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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.