Home / 15,530.22-23,300.18-9,989.82

Finding the Fourth Proportional to 15,530.22, 23,300.18 and 9,989.82

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Solution

The fourth proportional to 15,530.22, 23,300.18 and 9,989.82 is: 14,987.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,530.22 : 23,300.18 = 9,989.82 : x
  2. Step 2: Convert to fraction form
    15,530.22/23,300.18 = 9,989.82/x
  3. Step 3: Cross multiply
    15,530.22x = 23,300.18 × 9,989.82
  4. Step 4: Simplify right side
    15,530.22x = 232,764,554.22
  5. Step 5: Solve for x
    x = 232,764,554.22/15,530.22
  6. Step 6: Final answer
    x = 14,987.85

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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.