Home / 10,145.48-15,220.30-3,905.48

Finding the Fourth Proportional to 10,145.48, 15,220.30 and 3,905.48

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Solution

The fourth proportional to 10,145.48, 15,220.30 and 3,905.48 is: 5,859.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145.48 : 15,220.30 = 3,905.48 : x
  2. Step 2: Convert to fraction form
    10,145.48/15,220.30 = 3,905.48/x
  3. Step 3: Cross multiply
    10,145.48x = 15,220.30 × 3,905.48
  4. Step 4: Simplify right side
    10,145.48x = 59,442,577.24
  5. Step 5: Solve for x
    x = 59,442,577.24/10,145.48
  6. Step 6: Final answer
    x = 5,859.02

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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.