Home / 18,929.32-26,112.18-11,854.28

Finding the Fourth Proportional to 18,929.32, 26,112.18 and 11,854.28

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Solution

The fourth proportional to 18,929.32, 26,112.18 and 11,854.28 is: 16,352.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929.32 : 26,112.18 = 11,854.28 : x
  2. Step 2: Convert to fraction form
    18,929.32/26,112.18 = 11,854.28/x
  3. Step 3: Cross multiply
    18,929.32x = 26,112.18 × 11,854.28
  4. Step 4: Simplify right side
    18,929.32x = 309,541,093.13
  5. Step 5: Solve for x
    x = 309,541,093.13/18,929.32
  6. Step 6: Final answer
    x = 16,352.47

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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.