Home / 14,545.36-20,072.88-8,257.72

Finding the Fourth Proportional to 14,545.36, 20,072.88 and 8,257.72

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Solution

The fourth proportional to 14,545.36, 20,072.88 and 8,257.72 is: 11,395.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,545.36 : 20,072.88 = 8,257.72 : x
  2. Step 2: Convert to fraction form
    14,545.36/20,072.88 = 8,257.72/x
  3. Step 3: Cross multiply
    14,545.36x = 20,072.88 × 8,257.72
  4. Step 4: Simplify right side
    14,545.36x = 165,756,222.63
  5. Step 5: Solve for x
    x = 165,756,222.63/14,545.36
  6. Step 6: Final answer
    x = 11,395.81

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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.