Home / 14,545.51-20,072.83-8,257.89

Finding the Fourth Proportional to 14,545.51, 20,072.83 and 8,257.89

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Solution

The fourth proportional to 14,545.51, 20,072.83 and 8,257.89 is: 11,395.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,545.51 : 20,072.83 = 8,257.89 : x
  2. Step 2: Convert to fraction form
    14,545.51/20,072.83 = 8,257.89/x
  3. Step 3: Cross multiply
    14,545.51x = 20,072.83 × 8,257.89
  4. Step 4: Simplify right side
    14,545.51x = 165,759,116.27
  5. Step 5: Solve for x
    x = 165,759,116.27/14,545.51
  6. Step 6: Final answer
    x = 11,395.89

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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.