Home / 8,323.32-12,478.08-3,395.28

Finding the Fourth Proportional to 8,323.32, 12,478.08 and 3,395.28

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Solution

The fourth proportional to 8,323.32, 12,478.08 and 3,395.28 is: 5,090.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,323.32 : 12,478.08 = 3,395.28 : x
  2. Step 2: Convert to fraction form
    8,323.32/12,478.08 = 3,395.28/x
  3. Step 3: Cross multiply
    8,323.32x = 12,478.08 × 3,395.28
  4. Step 4: Simplify right side
    8,323.32x = 42,366,575.46
  5. Step 5: Solve for x
    x = 42,366,575.46/8,323.32
  6. Step 6: Final answer
    x = 5,090.11

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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.