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Finding the Fourth Proportional to 18,679, 25,777.43 and 10,295.50

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Solution

The fourth proportional to 18,679, 25,777.43 and 10,295.50 is: 14,208.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,679 : 25,777.43 = 10,295.50 : x
  2. Step 2: Convert to fraction form
    18,679/25,777.43 = 10,295.50/x
  3. Step 3: Cross multiply
    18,679x = 25,777.43 × 10,295.50
  4. Step 4: Simplify right side
    18,679x = 265,391,530.57
  5. Step 5: Solve for x
    x = 265,391,530.57/18,679
  6. Step 6: Final answer
    x = 14,208.02

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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.