Home / 18,673.57-28,014.73-7,429.55

Finding the Fourth Proportional to 18,673.57, 28,014.73 and 7,429.55

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Solution

The fourth proportional to 18,673.57, 28,014.73 and 7,429.55 is: 11,146.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,673.57 : 28,014.73 = 7,429.55 : x
  2. Step 2: Convert to fraction form
    18,673.57/28,014.73 = 7,429.55/x
  3. Step 3: Cross multiply
    18,673.57x = 28,014.73 × 7,429.55
  4. Step 4: Simplify right side
    18,673.57x = 208,136,837.27
  5. Step 5: Solve for x
    x = 208,136,837.27/18,673.57
  6. Step 6: Final answer
    x = 11,146.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.