Home / 15,788.77-21,796.38-9,822.36

Finding the Fourth Proportional to 15,788.77, 21,796.38 and 9,822.36

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Solution

The fourth proportional to 15,788.77, 21,796.38 and 9,822.36 is: 13,559.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,788.77 : 21,796.38 = 9,822.36 : x
  2. Step 2: Convert to fraction form
    15,788.77/21,796.38 = 9,822.36/x
  3. Step 3: Cross multiply
    15,788.77x = 21,796.38 × 9,822.36
  4. Step 4: Simplify right side
    15,788.77x = 214,091,891.06
  5. Step 5: Solve for x
    x = 214,091,891.06/15,788.77
  6. Step 6: Final answer
    x = 13,559.76

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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.