Home / 10,178.21-15,267.29-2,783.77

Finding the Fourth Proportional to 10,178.21, 15,267.29 and 2,783.77

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Solution

The fourth proportional to 10,178.21, 15,267.29 and 2,783.77 is: 4,175.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,178.21 : 15,267.29 = 2,783.77 : x
  2. Step 2: Convert to fraction form
    10,178.21/15,267.29 = 2,783.77/x
  3. Step 3: Cross multiply
    10,178.21x = 15,267.29 × 2,783.77
  4. Step 4: Simplify right side
    10,178.21x = 42,500,623.88
  5. Step 5: Solve for x
    x = 42,500,623.88/10,178.21
  6. Step 6: Final answer
    x = 4,175.65

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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.