Home / 13,252.79-18,291.42-8,776.73

Finding the Fourth Proportional to 13,252.79, 18,291.42 and 8,776.73

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Solution

The fourth proportional to 13,252.79, 18,291.42 and 8,776.73 is: 12,113.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,252.79 : 18,291.42 = 8,776.73 : x
  2. Step 2: Convert to fraction form
    13,252.79/18,291.42 = 8,776.73/x
  3. Step 3: Cross multiply
    13,252.79x = 18,291.42 × 8,776.73
  4. Step 4: Simplify right side
    13,252.79x = 160,538,854.66
  5. Step 5: Solve for x
    x = 160,538,854.66/13,252.79
  6. Step 6: Final answer
    x = 12,113.59

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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.