Home / 13,729.38-18,934.32-10,705.26

Finding the Fourth Proportional to 13,729.38, 18,934.32 and 10,705.26

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Solution

The fourth proportional to 13,729.38, 18,934.32 and 10,705.26 is: 14,763.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729.38 : 18,934.32 = 10,705.26 : x
  2. Step 2: Convert to fraction form
    13,729.38/18,934.32 = 10,705.26/x
  3. Step 3: Cross multiply
    13,729.38x = 18,934.32 × 10,705.26
  4. Step 4: Simplify right side
    13,729.38x = 202,696,818.52
  5. Step 5: Solve for x
    x = 202,696,818.52/13,729.38
  6. Step 6: Final answer
    x = 14,763.73

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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.