Home / 15,740.22-21,721.56-9,025.98

Finding the Fourth Proportional to 15,740.22, 21,721.56 and 9,025.98

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Solution

The fourth proportional to 15,740.22, 21,721.56 and 9,025.98 is: 12,455.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,740.22 : 21,721.56 = 9,025.98 : x
  2. Step 2: Convert to fraction form
    15,740.22/21,721.56 = 9,025.98/x
  3. Step 3: Cross multiply
    15,740.22x = 21,721.56 × 9,025.98
  4. Step 4: Simplify right side
    15,740.22x = 196,058,366.13
  5. Step 5: Solve for x
    x = 196,058,366.13/15,740.22
  6. Step 6: Final answer
    x = 12,455.88

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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.