Home / 15,837.83-21,855.30-8,763.83

Finding the Fourth Proportional to 15,837.83, 21,855.30 and 8,763.83

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Solution

The fourth proportional to 15,837.83, 21,855.30 and 8,763.83 is: 12,093.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,837.83 : 21,855.30 = 8,763.83 : x
  2. Step 2: Convert to fraction form
    15,837.83/21,855.30 = 8,763.83/x
  3. Step 3: Cross multiply
    15,837.83x = 21,855.30 × 8,763.83
  4. Step 4: Simplify right side
    15,837.83x = 191,536,133.80
  5. Step 5: Solve for x
    x = 191,536,133.80/15,837.83
  6. Step 6: Final answer
    x = 12,093.58

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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.