Home / 14,829.95-20,464.62-8,456.78

Finding the Fourth Proportional to 14,829.95, 20,464.62 and 8,456.78

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Solution

The fourth proportional to 14,829.95, 20,464.62 and 8,456.78 is: 11,669.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,829.95 : 20,464.62 = 8,456.78 : x
  2. Step 2: Convert to fraction form
    14,829.95/20,464.62 = 8,456.78/x
  3. Step 3: Cross multiply
    14,829.95x = 20,464.62 × 8,456.78
  4. Step 4: Simplify right side
    14,829.95x = 173,064,789.12
  5. Step 5: Solve for x
    x = 173,064,789.12/14,829.95
  6. Step 6: Final answer
    x = 11,669.95

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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.