Home / 11,775.42-17,665.56-3,455.70

Finding the Fourth Proportional to 11,775.42, 17,665.56 and 3,455.70

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Solution

The fourth proportional to 11,775.42, 17,665.56 and 3,455.70 is: 5,184.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,775.42 : 17,665.56 = 3,455.70 : x
  2. Step 2: Convert to fraction form
    11,775.42/17,665.56 = 3,455.70/x
  3. Step 3: Cross multiply
    11,775.42x = 17,665.56 × 3,455.70
  4. Step 4: Simplify right side
    11,775.42x = 61,046,875.69
  5. Step 5: Solve for x
    x = 61,046,875.69/11,775.42
  6. Step 6: Final answer
    x = 5,184.26

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1.5x scale

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.