Home / 16,804.32-23,165.64-13,261.20

Finding the Fourth Proportional to 16,804.32, 23,165.64 and 13,261.20

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Solution

The fourth proportional to 16,804.32, 23,165.64 and 13,261.20 is: 18,281.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,804.32 : 23,165.64 = 13,261.20 : x
  2. Step 2: Convert to fraction form
    16,804.32/23,165.64 = 13,261.20/x
  3. Step 3: Cross multiply
    16,804.32x = 23,165.64 × 13,261.20
  4. Step 4: Simplify right side
    16,804.32x = 307,204,185.17
  5. Step 5: Solve for x
    x = 307,204,185.17/16,804.32
  6. Step 6: Final answer
    x = 18,281.26

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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.