Home / 13,925.50-19,218.18-8,623.36

Finding the Fourth Proportional to 13,925.50, 19,218.18 and 8,623.36

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Solution

The fourth proportional to 13,925.50, 19,218.18 and 8,623.36 is: 11,900.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925.50 : 19,218.18 = 8,623.36 : x
  2. Step 2: Convert to fraction form
    13,925.50/19,218.18 = 8,623.36/x
  3. Step 3: Cross multiply
    13,925.50x = 19,218.18 × 8,623.36
  4. Step 4: Simplify right side
    13,925.50x = 165,725,284.68
  5. Step 5: Solve for x
    x = 165,725,284.68/13,925.50
  6. Step 6: Final answer
    x = 11,900.85

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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.