Home / 13,881.12-19,156.32-8,295.36

Finding the Fourth Proportional to 13,881.12, 19,156.32 and 8,295.36

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Solution

The fourth proportional to 13,881.12, 19,156.32 and 8,295.36 is: 11,447.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881.12 : 19,156.32 = 8,295.36 : x
  2. Step 2: Convert to fraction form
    13,881.12/19,156.32 = 8,295.36/x
  3. Step 3: Cross multiply
    13,881.12x = 19,156.32 × 8,295.36
  4. Step 4: Simplify right side
    13,881.12x = 158,908,570.68
  5. Step 5: Solve for x
    x = 158,908,570.68/13,881.12
  6. Step 6: Final answer
    x = 11,447.82

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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.