Home / 15,048.36-20,760.32-9,076.64

Finding the Fourth Proportional to 15,048.36, 20,760.32 and 9,076.64

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Solution

The fourth proportional to 15,048.36, 20,760.32 and 9,076.64 is: 12,521.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,048.36 : 20,760.32 = 9,076.64 : x
  2. Step 2: Convert to fraction form
    15,048.36/20,760.32 = 9,076.64/x
  3. Step 3: Cross multiply
    15,048.36x = 20,760.32 × 9,076.64
  4. Step 4: Simplify right side
    15,048.36x = 188,433,950.92
  5. Step 5: Solve for x
    x = 188,433,950.92/15,048.36
  6. Step 6: Final answer
    x = 12,521.89

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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.