Home / 14,256.20-21,408.60-7,695.20

Finding the Fourth Proportional to 14,256.20, 21,408.60 and 7,695.20

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Solution

The fourth proportional to 14,256.20, 21,408.60 and 7,695.20 is: 11,555.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,256.20 : 21,408.60 = 7,695.20 : x
  2. Step 2: Convert to fraction form
    14,256.20/21,408.60 = 7,695.20/x
  3. Step 3: Cross multiply
    14,256.20x = 21,408.60 × 7,695.20
  4. Step 4: Simplify right side
    14,256.20x = 164,743,458.72
  5. Step 5: Solve for x
    x = 164,743,458.72/14,256.20
  6. Step 6: Final answer
    x = 11,555.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.