Home / 8,729.10-13,095.45-2,889.81

Finding the Fourth Proportional to 8,729.10, 13,095.45 and 2,889.81

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Solution

The fourth proportional to 8,729.10, 13,095.45 and 2,889.81 is: 4,335.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.10 : 13,095.45 = 2,889.81 : x
  2. Step 2: Convert to fraction form
    8,729.10/13,095.45 = 2,889.81/x
  3. Step 3: Cross multiply
    8,729.10x = 13,095.45 × 2,889.81
  4. Step 4: Simplify right side
    8,729.10x = 37,843,362.36
  5. Step 5: Solve for x
    x = 37,843,362.36/8,729.10
  6. Step 6: Final answer
    x = 4,335.31

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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.