Home / 11,443.20-15,782.40-7,252.48

Finding the Fourth Proportional to 11,443.20, 15,782.40 and 7,252.48

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Solution

The fourth proportional to 11,443.20, 15,782.40 and 7,252.48 is: 10,002.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,443.20 : 15,782.40 = 7,252.48 : x
  2. Step 2: Convert to fraction form
    11,443.20/15,782.40 = 7,252.48/x
  3. Step 3: Cross multiply
    11,443.20x = 15,782.40 × 7,252.48
  4. Step 4: Simplify right side
    11,443.20x = 114,461,540.35
  5. Step 5: Solve for x
    x = 114,461,540.35/11,443.20
  6. Step 6: Final answer
    x = 10,002.58

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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.