Home / 18,818.89-28,233.08-13,283.04

Finding the Fourth Proportional to 18,818.89, 28,233.08 and 13,283.04

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Solution

The fourth proportional to 18,818.89, 28,233.08 and 13,283.04 is: 19,927.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.89 : 28,233.08 = 13,283.04 : x
  2. Step 2: Convert to fraction form
    18,818.89/28,233.08 = 13,283.04/x
  3. Step 3: Cross multiply
    18,818.89x = 28,233.08 × 13,283.04
  4. Step 4: Simplify right side
    18,818.89x = 375,021,220.23
  5. Step 5: Solve for x
    x = 375,021,220.23/18,818.89
  6. Step 6: Final answer
    x = 19,927.92

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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.