Home / 10,178.08-15,266.10-2,783.20

Finding the Fourth Proportional to 10,178.08, 15,266.10 and 2,783.20

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Solution

The fourth proportional to 10,178.08, 15,266.10 and 2,783.20 is: 4,174.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,178.08 : 15,266.10 = 2,783.20 : x
  2. Step 2: Convert to fraction form
    10,178.08/15,266.10 = 2,783.20/x
  3. Step 3: Cross multiply
    10,178.08x = 15,266.10 × 2,783.20
  4. Step 4: Simplify right side
    10,178.08x = 42,488,609.52
  5. Step 5: Solve for x
    x = 42,488,609.52/10,178.08
  6. Step 6: Final answer
    x = 4,174.52

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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.