Home / 18,784.08-25,899.68-12,069.98

Finding the Fourth Proportional to 18,784.08, 25,899.68 and 12,069.98

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Solution

The fourth proportional to 18,784.08, 25,899.68 and 12,069.98 is: 16,642.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,784.08 : 25,899.68 = 12,069.98 : x
  2. Step 2: Convert to fraction form
    18,784.08/25,899.68 = 12,069.98/x
  3. Step 3: Cross multiply
    18,784.08x = 25,899.68 × 12,069.98
  4. Step 4: Simplify right side
    18,784.08x = 312,608,619.61
  5. Step 5: Solve for x
    x = 312,608,619.61/18,784.08
  6. Step 6: Final answer
    x = 16,642.21

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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.