Home / 10,383.45-15,577.20-4,142.40

Finding the Fourth Proportional to 10,383.45, 15,577.20 and 4,142.40

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Solution

The fourth proportional to 10,383.45, 15,577.20 and 4,142.40 is: 6,214.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,383.45 : 15,577.20 = 4,142.40 : x
  2. Step 2: Convert to fraction form
    10,383.45/15,577.20 = 4,142.40/x
  3. Step 3: Cross multiply
    10,383.45x = 15,577.20 × 4,142.40
  4. Step 4: Simplify right side
    10,383.45x = 64,526,993.28
  5. Step 5: Solve for x
    x = 64,526,993.28/10,383.45
  6. Step 6: Final answer
    x = 6,214.41

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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.