Home / 14,962.40-20,648.16-8,156.38

Finding the Fourth Proportional to 14,962.40, 20,648.16 and 8,156.38

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Solution

The fourth proportional to 14,962.40, 20,648.16 and 8,156.38 is: 11,255.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,962.40 : 20,648.16 = 8,156.38 : x
  2. Step 2: Convert to fraction form
    14,962.40/20,648.16 = 8,156.38/x
  3. Step 3: Cross multiply
    14,962.40x = 20,648.16 × 8,156.38
  4. Step 4: Simplify right side
    14,962.40x = 168,414,187.64
  5. Step 5: Solve for x
    x = 168,414,187.64/14,962.40
  6. Step 6: Final answer
    x = 11,255.83

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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.