Home / 14,629.60-20,188.86-7,915.22

Finding the Fourth Proportional to 14,629.60, 20,188.86 and 7,915.22

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Solution

The fourth proportional to 14,629.60, 20,188.86 and 7,915.22 is: 10,923.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,629.60 : 20,188.86 = 7,915.22 : x
  2. Step 2: Convert to fraction form
    14,629.60/20,188.86 = 7,915.22/x
  3. Step 3: Cross multiply
    14,629.60x = 20,188.86 × 7,915.22
  4. Step 4: Simplify right side
    14,629.60x = 159,799,268.45
  5. Step 5: Solve for x
    x = 159,799,268.45/14,629.60
  6. Step 6: Final answer
    x = 10,923.01

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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.