Home / 18,415.50-27,599.29-8,276.36

Finding the Fourth Proportional to 18,415.50, 27,599.29 and 8,276.36

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Solution

The fourth proportional to 18,415.50, 27,599.29 and 8,276.36 is: 12,403.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,415.50 : 27,599.29 = 8,276.36 : x
  2. Step 2: Convert to fraction form
    18,415.50/27,599.29 = 8,276.36/x
  3. Step 3: Cross multiply
    18,415.50x = 27,599.29 × 8,276.36
  4. Step 4: Simplify right side
    18,415.50x = 228,421,665.08
  5. Step 5: Solve for x
    x = 228,421,665.08/18,415.50
  6. Step 6: Final answer
    x = 12,403.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.