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Finding the Fourth Proportional to 14,745.28, 20,334 and 12,513.28

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Solution

The fourth proportional to 14,745.28, 20,334 and 12,513.28 is: 17,256.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,745.28 : 20,334 = 12,513.28 : x
  2. Step 2: Convert to fraction form
    14,745.28/20,334 = 12,513.28/x
  3. Step 3: Cross multiply
    14,745.28x = 20,334 × 12,513.28
  4. Step 4: Simplify right side
    14,745.28x = 254,445,035.52
  5. Step 5: Solve for x
    x = 254,445,035.52/14,745.28
  6. Step 6: Final answer
    x = 17,256.03

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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.