Home / 18,904.32-26,042.84-13,228.48

Finding the Fourth Proportional to 18,904.32, 26,042.84 and 13,228.48

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Solution

The fourth proportional to 18,904.32, 26,042.84 and 13,228.48 is: 18,223.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904.32 : 26,042.84 = 13,228.48 : x
  2. Step 2: Convert to fraction form
    18,904.32/26,042.84 = 13,228.48/x
  3. Step 3: Cross multiply
    18,904.32x = 26,042.84 × 13,228.48
  4. Step 4: Simplify right side
    18,904.32x = 344,507,188.08
  5. Step 5: Solve for x
    x = 344,507,188.08/18,904.32
  6. Step 6: Final answer
    x = 18,223.73

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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.