Home / 15,774.80-23,676.66-7,989.08

Finding the Fourth Proportional to 15,774.80, 23,676.66 and 7,989.08

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Solution

The fourth proportional to 15,774.80, 23,676.66 and 7,989.08 is: 11,990.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,774.80 : 23,676.66 = 7,989.08 : x
  2. Step 2: Convert to fraction form
    15,774.80/23,676.66 = 7,989.08/x
  3. Step 3: Cross multiply
    15,774.80x = 23,676.66 × 7,989.08
  4. Step 4: Simplify right side
    15,774.80x = 189,154,730.87
  5. Step 5: Solve for x
    x = 189,154,730.87/15,774.80
  6. Step 6: Final answer
    x = 11,990.94

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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.