Home / 13,877.16-19,150.56-8,211.84

Finding the Fourth Proportional to 13,877.16, 19,150.56 and 8,211.84

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Solution

The fourth proportional to 13,877.16, 19,150.56 and 8,211.84 is: 11,332.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.16 : 19,150.56 = 8,211.84 : x
  2. Step 2: Convert to fraction form
    13,877.16/19,150.56 = 8,211.84/x
  3. Step 3: Cross multiply
    13,877.16x = 19,150.56 × 8,211.84
  4. Step 4: Simplify right side
    13,877.16x = 157,261,334.63
  5. Step 5: Solve for x
    x = 157,261,334.63/13,877.16
  6. Step 6: Final answer
    x = 11,332.39

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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.