Home / 10,245.45-14,138.58-5,769.64

Finding the Fourth Proportional to 10,245.45, 14,138.58 and 5,769.64

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Solution

The fourth proportional to 10,245.45, 14,138.58 and 5,769.64 is: 7,962.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,245.45 : 14,138.58 = 5,769.64 : x
  2. Step 2: Convert to fraction form
    10,245.45/14,138.58 = 5,769.64/x
  3. Step 3: Cross multiply
    10,245.45x = 14,138.58 × 5,769.64
  4. Step 4: Simplify right side
    10,245.45x = 81,574,556.02
  5. Step 5: Solve for x
    x = 81,574,556.02/10,245.45
  6. Step 6: Final answer
    x = 7,962.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.