Home / 10,442.07-15,665.41-5,179.94

Finding the Fourth Proportional to 10,442.07, 15,665.41 and 5,179.94

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Solution

The fourth proportional to 10,442.07, 15,665.41 and 5,179.94 is: 7,771.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,442.07 : 15,665.41 = 5,179.94 : x
  2. Step 2: Convert to fraction form
    10,442.07/15,665.41 = 5,179.94/x
  3. Step 3: Cross multiply
    10,442.07x = 15,665.41 × 5,179.94
  4. Step 4: Simplify right side
    10,442.07x = 81,145,955.16
  5. Step 5: Solve for x
    x = 81,145,955.16/10,442.07
  6. Step 6: Final answer
    x = 7,771.06

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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.