Home / 13,545.74-18,651.58-11,857.70

Finding the Fourth Proportional to 13,545.74, 18,651.58 and 11,857.70

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Solution

The fourth proportional to 13,545.74, 18,651.58 and 11,857.70 is: 16,327.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.74 : 18,651.58 = 11,857.70 : x
  2. Step 2: Convert to fraction form
    13,545.74/18,651.58 = 11,857.70/x
  3. Step 3: Cross multiply
    13,545.74x = 18,651.58 × 11,857.70
  4. Step 4: Simplify right side
    13,545.74x = 221,164,717.26
  5. Step 5: Solve for x
    x = 221,164,717.26/13,545.74
  6. Step 6: Final answer
    x = 16,327.26

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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.