Home / 10,953.75-15,136.56-8,963.58

Finding the Fourth Proportional to 10,953.75, 15,136.56 and 8,963.58

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Solution

The fourth proportional to 10,953.75, 15,136.56 and 8,963.58 is: 12,386.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,953.75 : 15,136.56 = 8,963.58 : x
  2. Step 2: Convert to fraction form
    10,953.75/15,136.56 = 8,963.58/x
  3. Step 3: Cross multiply
    10,953.75x = 15,136.56 × 8,963.58
  4. Step 4: Simplify right side
    10,953.75x = 135,677,766.48
  5. Step 5: Solve for x
    x = 135,677,766.48/10,953.75
  6. Step 6: Final answer
    x = 12,386.42

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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.