Home / 18,381.30-25,354.23-10,821.27

Finding the Fourth Proportional to 18,381.30, 25,354.23 and 10,821.27

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Solution

The fourth proportional to 18,381.30, 25,354.23 and 10,821.27 is: 14,926.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.30 : 25,354.23 = 10,821.27 : x
  2. Step 2: Convert to fraction form
    18,381.30/25,354.23 = 10,821.27/x
  3. Step 3: Cross multiply
    18,381.30x = 25,354.23 × 10,821.27
  4. Step 4: Simplify right side
    18,381.30x = 274,364,968.47
  5. Step 5: Solve for x
    x = 274,364,968.47/18,381.30
  6. Step 6: Final answer
    x = 14,926.31

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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.