Home / 11,775.42-17,670.03-4,385.02

Finding the Fourth Proportional to 11,775.42, 17,670.03 and 4,385.02

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Solution

The fourth proportional to 11,775.42, 17,670.03 and 4,385.02 is: 6,580.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,775.42 : 17,670.03 = 4,385.02 : x
  2. Step 2: Convert to fraction form
    11,775.42/17,670.03 = 4,385.02/x
  3. Step 3: Cross multiply
    11,775.42x = 17,670.03 × 4,385.02
  4. Step 4: Simplify right side
    11,775.42x = 77,483,434.95
  5. Step 5: Solve for x
    x = 77,483,434.95/11,775.42
  6. Step 6: Final answer
    x = 6,580.10

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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.