Home / 13,906.32-19,189.98-7,937.76

Finding the Fourth Proportional to 13,906.32, 19,189.98 and 7,937.76

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Solution

The fourth proportional to 13,906.32, 19,189.98 and 7,937.76 is: 10,953.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.32 : 19,189.98 = 7,937.76 : x
  2. Step 2: Convert to fraction form
    13,906.32/19,189.98 = 7,937.76/x
  3. Step 3: Cross multiply
    13,906.32x = 19,189.98 × 7,937.76
  4. Step 4: Simplify right side
    13,906.32x = 152,325,455.64
  5. Step 5: Solve for x
    x = 152,325,455.64/13,906.32
  6. Step 6: Final answer
    x = 10,953.69

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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.