Home / 10,280.64-15,417.30-3,705.06

Finding the Fourth Proportional to 10,280.64, 15,417.30 and 3,705.06

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Solution

The fourth proportional to 10,280.64, 15,417.30 and 3,705.06 is: 5,556.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.64 : 15,417.30 = 3,705.06 : x
  2. Step 2: Convert to fraction form
    10,280.64/15,417.30 = 3,705.06/x
  3. Step 3: Cross multiply
    10,280.64x = 15,417.30 × 3,705.06
  4. Step 4: Simplify right side
    10,280.64x = 57,122,021.54
  5. Step 5: Solve for x
    x = 57,122,021.54/10,280.64
  6. Step 6: Final answer
    x = 5,556.27

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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.