Home / 14,629.60-20,188.79-7,915.23

Finding the Fourth Proportional to 14,629.60, 20,188.79 and 7,915.23

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Solution

The fourth proportional to 14,629.60, 20,188.79 and 7,915.23 is: 10,922.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,629.60 : 20,188.79 = 7,915.23 : x
  2. Step 2: Convert to fraction form
    14,629.60/20,188.79 = 7,915.23/x
  3. Step 3: Cross multiply
    14,629.60x = 20,188.79 × 7,915.23
  4. Step 4: Simplify right side
    14,629.60x = 159,798,815.33
  5. Step 5: Solve for x
    x = 159,798,815.33/14,629.60
  6. Step 6: Final answer
    x = 10,922.98

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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.