Home / 10,031.78-15,049.56-4,485.36

Finding the Fourth Proportional to 10,031.78, 15,049.56 and 4,485.36

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Solution

The fourth proportional to 10,031.78, 15,049.56 and 4,485.36 is: 6,728.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,031.78 : 15,049.56 = 4,485.36 : x
  2. Step 2: Convert to fraction form
    10,031.78/15,049.56 = 4,485.36/x
  3. Step 3: Cross multiply
    10,031.78x = 15,049.56 × 4,485.36
  4. Step 4: Simplify right side
    10,031.78x = 67,502,694.44
  5. Step 5: Solve for x
    x = 67,502,694.44/10,031.78
  6. Step 6: Final answer
    x = 6,728.89

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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.