Home / 14,801.28-20,427.60-8,513.60

Finding the Fourth Proportional to 14,801.28, 20,427.60 and 8,513.60

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Solution

The fourth proportional to 14,801.28, 20,427.60 and 8,513.60 is: 11,749.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,801.28 : 20,427.60 = 8,513.60 : x
  2. Step 2: Convert to fraction form
    14,801.28/20,427.60 = 8,513.60/x
  3. Step 3: Cross multiply
    14,801.28x = 20,427.60 × 8,513.60
  4. Step 4: Simplify right side
    14,801.28x = 173,912,415.36
  5. Step 5: Solve for x
    x = 173,912,415.36/14,801.28
  6. Step 6: Final answer
    x = 11,749.82

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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.