Home / 12,582.33-17,362.78-6,915.97

Finding the Fourth Proportional to 12,582.33, 17,362.78 and 6,915.97

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Solution

The fourth proportional to 12,582.33, 17,362.78 and 6,915.97 is: 9,543.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,582.33 : 17,362.78 = 6,915.97 : x
  2. Step 2: Convert to fraction form
    12,582.33/17,362.78 = 6,915.97/x
  3. Step 3: Cross multiply
    12,582.33x = 17,362.78 × 6,915.97
  4. Step 4: Simplify right side
    12,582.33x = 120,080,465.60
  5. Step 5: Solve for x
    x = 120,080,465.60/12,582.33
  6. Step 6: Final answer
    x = 9,543.58

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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.