Home / 14,749.28-20,339.52-12,517.28

Finding the Fourth Proportional to 14,749.28, 20,339.52 and 12,517.28

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Solution

The fourth proportional to 14,749.28, 20,339.52 and 12,517.28 is: 17,261.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,749.28 : 20,339.52 = 12,517.28 : x
  2. Step 2: Convert to fraction form
    14,749.28/20,339.52 = 12,517.28/x
  3. Step 3: Cross multiply
    14,749.28x = 20,339.52 × 12,517.28
  4. Step 4: Simplify right side
    14,749.28x = 254,595,466.91
  5. Step 5: Solve for x
    x = 254,595,466.91/14,749.28
  6. Step 6: Final answer
    x = 17,261.55

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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.