Home / 13,673.61-20,548.89-8,127.95

Finding the Fourth Proportional to 13,673.61, 20,548.89 and 8,127.95

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Solution

The fourth proportional to 13,673.61, 20,548.89 and 8,127.95 is: 12,214.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673.61 : 20,548.89 = 8,127.95 : x
  2. Step 2: Convert to fraction form
    13,673.61/20,548.89 = 8,127.95/x
  3. Step 3: Cross multiply
    13,673.61x = 20,548.89 × 8,127.95
  4. Step 4: Simplify right side
    13,673.61x = 167,020,247.73
  5. Step 5: Solve for x
    x = 167,020,247.73/13,673.61
  6. Step 6: Final answer
    x = 12,214.79

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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.