Home / 15,877.32-23,811.12-10,978.44

Finding the Fourth Proportional to 15,877.32, 23,811.12 and 10,978.44

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Solution

The fourth proportional to 15,877.32, 23,811.12 and 10,978.44 is: 16,464.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,877.32 : 23,811.12 = 10,978.44 : x
  2. Step 2: Convert to fraction form
    15,877.32/23,811.12 = 10,978.44/x
  3. Step 3: Cross multiply
    15,877.32x = 23,811.12 × 10,978.44
  4. Step 4: Simplify right side
    15,877.32x = 261,408,897.36
  5. Step 5: Solve for x
    x = 261,408,897.36/15,877.32
  6. Step 6: Final answer
    x = 16,464.30

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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.