Home / 15,874.02-23,811.52-4,780.78

Finding the Fourth Proportional to 15,874.02, 23,811.52 and 4,780.78

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Solution

The fourth proportional to 15,874.02, 23,811.52 and 4,780.78 is: 7,171.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,874.02 : 23,811.52 = 4,780.78 : x
  2. Step 2: Convert to fraction form
    15,874.02/23,811.52 = 4,780.78/x
  3. Step 3: Cross multiply
    15,874.02x = 23,811.52 × 4,780.78
  4. Step 4: Simplify right side
    15,874.02x = 113,837,638.59
  5. Step 5: Solve for x
    x = 113,837,638.59/15,874.02
  6. Step 6: Final answer
    x = 7,171.32

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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.