Home / 13,857.76-19,123.50-8,267.68

Finding the Fourth Proportional to 13,857.76, 19,123.50 and 8,267.68

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Solution

The fourth proportional to 13,857.76, 19,123.50 and 8,267.68 is: 11,409.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,857.76 : 19,123.50 = 8,267.68 : x
  2. Step 2: Convert to fraction form
    13,857.76/19,123.50 = 8,267.68/x
  3. Step 3: Cross multiply
    13,857.76x = 19,123.50 × 8,267.68
  4. Step 4: Simplify right side
    13,857.76x = 158,106,978.48
  5. Step 5: Solve for x
    x = 158,106,978.48/13,857.76
  6. Step 6: Final answer
    x = 11,409.27

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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.