Home / 18,867.76-26,036.40-10,909.42

Finding the Fourth Proportional to 18,867.76, 26,036.40 and 10,909.42

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Solution

The fourth proportional to 18,867.76, 26,036.40 and 10,909.42 is: 15,054.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,867.76 : 26,036.40 = 10,909.42 : x
  2. Step 2: Convert to fraction form
    18,867.76/26,036.40 = 10,909.42/x
  3. Step 3: Cross multiply
    18,867.76x = 26,036.40 × 10,909.42
  4. Step 4: Simplify right side
    18,867.76x = 284,042,022.89
  5. Step 5: Solve for x
    x = 284,042,022.89/18,867.76
  6. Step 6: Final answer
    x = 15,054.36

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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.