Home / 18,617.85-25,692.57-10,660.05

Finding the Fourth Proportional to 18,617.85, 25,692.57 and 10,660.05

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Solution

The fourth proportional to 18,617.85, 25,692.57 and 10,660.05 is: 14,710.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,617.85 : 25,692.57 = 10,660.05 : x
  2. Step 2: Convert to fraction form
    18,617.85/25,692.57 = 10,660.05/x
  3. Step 3: Cross multiply
    18,617.85x = 25,692.57 × 10,660.05
  4. Step 4: Simplify right side
    18,617.85x = 273,884,080.83
  5. Step 5: Solve for x
    x = 273,884,080.83/18,617.85
  6. Step 6: Final answer
    x = 14,710.83

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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.