Home / 18,619.12-25,692.42-10,660.60

Finding the Fourth Proportional to 18,619.12, 25,692.42 and 10,660.60

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Solution

The fourth proportional to 18,619.12, 25,692.42 and 10,660.60 is: 14,710.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,619.12 : 25,692.42 = 10,660.60 : x
  2. Step 2: Convert to fraction form
    18,619.12/25,692.42 = 10,660.60/x
  3. Step 3: Cross multiply
    18,619.12x = 25,692.42 × 10,660.60
  4. Step 4: Simplify right side
    18,619.12x = 273,896,612.65
  5. Step 5: Solve for x
    x = 273,896,612.65/18,619.12
  6. Step 6: Final answer
    x = 14,710.50

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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.