Home / 15,802.31-23,686.46-8,399.32

Finding the Fourth Proportional to 15,802.31, 23,686.46 and 8,399.32

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Solution

The fourth proportional to 15,802.31, 23,686.46 and 8,399.32 is: 12,589.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,802.31 : 23,686.46 = 8,399.32 : x
  2. Step 2: Convert to fraction form
    15,802.31/23,686.46 = 8,399.32/x
  3. Step 3: Cross multiply
    15,802.31x = 23,686.46 × 8,399.32
  4. Step 4: Simplify right side
    15,802.31x = 198,949,996.78
  5. Step 5: Solve for x
    x = 198,949,996.78/15,802.31
  6. Step 6: Final answer
    x = 12,589.93

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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.