Home / 15,821.23-21,833.74-8,748.11

Finding the Fourth Proportional to 15,821.23, 21,833.74 and 8,748.11

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Solution

The fourth proportional to 15,821.23, 21,833.74 and 8,748.11 is: 12,072.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,821.23 : 21,833.74 = 8,748.11 : x
  2. Step 2: Convert to fraction form
    15,821.23/21,833.74 = 8,748.11/x
  3. Step 3: Cross multiply
    15,821.23x = 21,833.74 × 8,748.11
  4. Step 4: Simplify right side
    15,821.23x = 191,003,959.23
  5. Step 5: Solve for x
    x = 191,003,959.23/15,821.23
  6. Step 6: Final answer
    x = 12,072.64

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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.