Home / 13,871.95-19,146.85-8,563.73

Finding the Fourth Proportional to 13,871.95, 19,146.85 and 8,563.73

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Solution

The fourth proportional to 13,871.95, 19,146.85 and 8,563.73 is: 11,820.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871.95 : 19,146.85 = 8,563.73 : x
  2. Step 2: Convert to fraction form
    13,871.95/19,146.85 = 8,563.73/x
  3. Step 3: Cross multiply
    13,871.95x = 19,146.85 × 8,563.73
  4. Step 4: Simplify right side
    13,871.95x = 163,968,336.61
  5. Step 5: Solve for x
    x = 163,968,336.61/13,871.95
  6. Step 6: Final answer
    x = 11,820.14

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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.