Home / 14,919.28-20,588.96-8,632.08

Finding the Fourth Proportional to 14,919.28, 20,588.96 and 8,632.08

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Solution

The fourth proportional to 14,919.28, 20,588.96 and 8,632.08 is: 11,912.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,919.28 : 20,588.96 = 8,632.08 : x
  2. Step 2: Convert to fraction form
    14,919.28/20,588.96 = 8,632.08/x
  3. Step 3: Cross multiply
    14,919.28x = 20,588.96 × 8,632.08
  4. Step 4: Simplify right side
    14,919.28x = 177,725,549.84
  5. Step 5: Solve for x
    x = 177,725,549.84/14,919.28
  6. Step 6: Final answer
    x = 11,912.47

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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.