Home / 13,382.12-20,069.40-8,444.36

Finding the Fourth Proportional to 13,382.12, 20,069.40 and 8,444.36

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Solution

The fourth proportional to 13,382.12, 20,069.40 and 8,444.36 is: 12,664.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.12 : 20,069.40 = 8,444.36 : x
  2. Step 2: Convert to fraction form
    13,382.12/20,069.40 = 8,444.36/x
  3. Step 3: Cross multiply
    13,382.12x = 20,069.40 × 8,444.36
  4. Step 4: Simplify right side
    13,382.12x = 169,473,238.58
  5. Step 5: Solve for x
    x = 169,473,238.58/13,382.12
  6. Step 6: Final answer
    x = 12,664.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.