Home / 19,470.12-26,868.80-11,086.64

Finding the Fourth Proportional to 19,470.12, 26,868.80 and 11,086.64

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Solution

The fourth proportional to 19,470.12, 26,868.80 and 11,086.64 is: 15,299.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,470.12 : 26,868.80 = 11,086.64 : x
  2. Step 2: Convert to fraction form
    19,470.12/26,868.80 = 11,086.64/x
  3. Step 3: Cross multiply
    19,470.12x = 26,868.80 × 11,086.64
  4. Step 4: Simplify right side
    19,470.12x = 297,884,712.83
  5. Step 5: Solve for x
    x = 297,884,712.83/19,470.12
  6. Step 6: Final answer
    x = 15,299.58

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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.