Home / 15,798.26-21,793.73-9,420.36

Finding the Fourth Proportional to 15,798.26, 21,793.73 and 9,420.36

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Solution

The fourth proportional to 15,798.26, 21,793.73 and 9,420.36 is: 12,995.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,798.26 : 21,793.73 = 9,420.36 : x
  2. Step 2: Convert to fraction form
    15,798.26/21,793.73 = 9,420.36/x
  3. Step 3: Cross multiply
    15,798.26x = 21,793.73 × 9,420.36
  4. Step 4: Simplify right side
    15,798.26x = 205,304,735.24
  5. Step 5: Solve for x
    x = 205,304,735.24/15,798.26
  6. Step 6: Final answer
    x = 12,995.41

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1.5x scale

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.