Home / 15,869.55-21,899.64-8,795.82

Finding the Fourth Proportional to 15,869.55, 21,899.64 and 8,795.82

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Solution

The fourth proportional to 15,869.55, 21,899.64 and 8,795.82 is: 12,138.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,869.55 : 21,899.64 = 8,795.82 : x
  2. Step 2: Convert to fraction form
    15,869.55/21,899.64 = 8,795.82/x
  3. Step 3: Cross multiply
    15,869.55x = 21,899.64 × 8,795.82
  4. Step 4: Simplify right side
    15,869.55x = 192,625,291.50
  5. Step 5: Solve for x
    x = 192,625,291.50/15,869.55
  6. Step 6: Final answer
    x = 12,138.04

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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.