Home / 11,079.04-15,277.60-7,725.60

Finding the Fourth Proportional to 11,079.04, 15,277.60 and 7,725.60

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Solution

The fourth proportional to 11,079.04, 15,277.60 and 7,725.60 is: 10,653.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.04 : 15,277.60 = 7,725.60 : x
  2. Step 2: Convert to fraction form
    11,079.04/15,277.60 = 7,725.60/x
  3. Step 3: Cross multiply
    11,079.04x = 15,277.60 × 7,725.60
  4. Step 4: Simplify right side
    11,079.04x = 118,028,626.56
  5. Step 5: Solve for x
    x = 118,028,626.56/11,079.04
  6. Step 6: Final answer
    x = 10,653.33

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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.