Home / 13,937.92-19,238.01-8,629.72

Finding the Fourth Proportional to 13,937.92, 19,238.01 and 8,629.72

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Solution

The fourth proportional to 13,937.92, 19,238.01 and 8,629.72 is: 11,911.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,937.92 : 19,238.01 = 8,629.72 : x
  2. Step 2: Convert to fraction form
    13,937.92/19,238.01 = 8,629.72/x
  3. Step 3: Cross multiply
    13,937.92x = 19,238.01 × 8,629.72
  4. Step 4: Simplify right side
    13,937.92x = 166,018,639.66
  5. Step 5: Solve for x
    x = 166,018,639.66/13,937.92
  6. Step 6: Final answer
    x = 11,911.29

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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.