Home / 15,804.72-21,797.32-11,835.28

Finding the Fourth Proportional to 15,804.72, 21,797.32 and 11,835.28

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Solution

The fourth proportional to 15,804.72, 21,797.32 and 11,835.28 is: 16,322.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,804.72 : 21,797.32 = 11,835.28 : x
  2. Step 2: Convert to fraction form
    15,804.72/21,797.32 = 11,835.28/x
  3. Step 3: Cross multiply
    15,804.72x = 21,797.32 × 11,835.28
  4. Step 4: Simplify right side
    15,804.72x = 257,977,385.45
  5. Step 5: Solve for x
    x = 257,977,385.45/15,804.72
  6. Step 6: Final answer
    x = 16,322.81

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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.