Home / 7,585.12-11,388.30-3,889.96

Finding the Fourth Proportional to 7,585.12, 11,388.30 and 3,889.96

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Solution

The fourth proportional to 7,585.12, 11,388.30 and 3,889.96 is: 5,840.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,585.12 : 11,388.30 = 3,889.96 : x
  2. Step 2: Convert to fraction form
    7,585.12/11,388.30 = 3,889.96/x
  3. Step 3: Cross multiply
    7,585.12x = 11,388.30 × 3,889.96
  4. Step 4: Simplify right side
    7,585.12x = 44,300,031.47
  5. Step 5: Solve for x
    x = 44,300,031.47/7,585.12
  6. Step 6: Final answer
    x = 5,840.39

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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.