Home / 13,673.51-18,869.46-7,385.89

Finding the Fourth Proportional to 13,673.51, 18,869.46 and 7,385.89

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Solution

The fourth proportional to 13,673.51, 18,869.46 and 7,385.89 is: 10,192.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673.51 : 18,869.46 = 7,385.89 : x
  2. Step 2: Convert to fraction form
    13,673.51/18,869.46 = 7,385.89/x
  3. Step 3: Cross multiply
    13,673.51x = 18,869.46 × 7,385.89
  4. Step 4: Simplify right side
    13,673.51x = 139,367,755.92
  5. Step 5: Solve for x
    x = 139,367,755.92/13,673.51
  6. Step 6: Final answer
    x = 10,192.54

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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.