Home / 13,949.31-19,247.72-8,360.31

Finding the Fourth Proportional to 13,949.31, 19,247.72 and 8,360.31

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Solution

The fourth proportional to 13,949.31, 19,247.72 and 8,360.31 is: 11,535.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.31 : 19,247.72 = 8,360.31 : x
  2. Step 2: Convert to fraction form
    13,949.31/19,247.72 = 8,360.31/x
  3. Step 3: Cross multiply
    13,949.31x = 19,247.72 × 8,360.31
  4. Step 4: Simplify right side
    13,949.31x = 160,916,864.19
  5. Step 5: Solve for x
    x = 160,916,864.19/13,949.31
  6. Step 6: Final answer
    x = 11,535.83

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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.