Home / 13,444.12-20,115.48-12,079.92

Finding the Fourth Proportional to 13,444.12, 20,115.48 and 12,079.92

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Solution

The fourth proportional to 13,444.12, 20,115.48 and 12,079.92 is: 18,074.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,444.12 : 20,115.48 = 12,079.92 : x
  2. Step 2: Convert to fraction form
    13,444.12/20,115.48 = 12,079.92/x
  3. Step 3: Cross multiply
    13,444.12x = 20,115.48 × 12,079.92
  4. Step 4: Simplify right side
    13,444.12x = 242,993,389.16
  5. Step 5: Solve for x
    x = 242,993,389.16/13,444.12
  6. Step 6: Final answer
    x = 18,074.32

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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.