Home / 15,822.23-21,836.94-9,855.77

Finding the Fourth Proportional to 15,822.23, 21,836.94 and 9,855.77

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Solution

The fourth proportional to 15,822.23, 21,836.94 and 9,855.77 is: 13,602.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,822.23 : 21,836.94 = 9,855.77 : x
  2. Step 2: Convert to fraction form
    15,822.23/21,836.94 = 9,855.77/x
  3. Step 3: Cross multiply
    15,822.23x = 21,836.94 × 9,855.77
  4. Step 4: Simplify right side
    15,822.23x = 215,219,858.14
  5. Step 5: Solve for x
    x = 215,219,858.14/15,822.23
  6. Step 6: Final answer
    x = 13,602.37

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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.