Home / 13,888.83-19,172.91-8,859.96

Finding the Fourth Proportional to 13,888.83, 19,172.91 and 8,859.96

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Solution

The fourth proportional to 13,888.83, 19,172.91 and 8,859.96 is: 12,230.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.83 : 19,172.91 = 8,859.96 : x
  2. Step 2: Convert to fraction form
    13,888.83/19,172.91 = 8,859.96/x
  3. Step 3: Cross multiply
    13,888.83x = 19,172.91 × 8,859.96
  4. Step 4: Simplify right side
    13,888.83x = 169,871,215.68
  5. Step 5: Solve for x
    x = 169,871,215.68/13,888.83
  6. Step 6: Final answer
    x = 12,230.78

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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.