Home / 12,725.28-17,561.04-7,136.32

Finding the Fourth Proportional to 12,725.28, 17,561.04 and 7,136.32

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Solution

The fourth proportional to 12,725.28, 17,561.04 and 7,136.32 is: 9,848.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,725.28 : 17,561.04 = 7,136.32 : x
  2. Step 2: Convert to fraction form
    12,725.28/17,561.04 = 7,136.32/x
  3. Step 3: Cross multiply
    12,725.28x = 17,561.04 × 7,136.32
  4. Step 4: Simplify right side
    12,725.28x = 125,321,200.97
  5. Step 5: Solve for x
    x = 125,321,200.97/12,725.28
  6. Step 6: Final answer
    x = 9,848.21

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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.