Home / 18,867.66-26,036.82-10,911.30

Finding the Fourth Proportional to 18,867.66, 26,036.82 and 10,911.30

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Solution

The fourth proportional to 18,867.66, 26,036.82 and 10,911.30 is: 15,057.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,867.66 : 26,036.82 = 10,911.30 : x
  2. Step 2: Convert to fraction form
    18,867.66/26,036.82 = 10,911.30/x
  3. Step 3: Cross multiply
    18,867.66x = 26,036.82 × 10,911.30
  4. Step 4: Simplify right side
    18,867.66x = 284,095,554.07
  5. Step 5: Solve for x
    x = 284,095,554.07/18,867.66
  6. Step 6: Final answer
    x = 15,057.28

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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.