Home / 10,915.37-15,060.57-6,375.47

Finding the Fourth Proportional to 10,915.37, 15,060.57 and 6,375.47

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Solution

The fourth proportional to 10,915.37, 15,060.57 and 6,375.47 is: 8,796.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,915.37 : 15,060.57 = 6,375.47 : x
  2. Step 2: Convert to fraction form
    10,915.37/15,060.57 = 6,375.47/x
  3. Step 3: Cross multiply
    10,915.37x = 15,060.57 × 6,375.47
  4. Step 4: Simplify right side
    10,915.37x = 96,018,136.92
  5. Step 5: Solve for x
    x = 96,018,136.92/10,915.37
  6. Step 6: Final answer
    x = 8,796.60

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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.