Home / 14,039.60-19,373.18-8,072.12

Finding the Fourth Proportional to 14,039.60, 19,373.18 and 8,072.12

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Solution

The fourth proportional to 14,039.60, 19,373.18 and 8,072.12 is: 11,138.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,039.60 : 19,373.18 = 8,072.12 : x
  2. Step 2: Convert to fraction form
    14,039.60/19,373.18 = 8,072.12/x
  3. Step 3: Cross multiply
    14,039.60x = 19,373.18 × 8,072.12
  4. Step 4: Simplify right side
    14,039.60x = 156,382,641.81
  5. Step 5: Solve for x
    x = 156,382,641.81/14,039.60
  6. Step 6: Final answer
    x = 11,138.69

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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.