Home / 18,225.30-27,328.50-8,356.08

Finding the Fourth Proportional to 18,225.30, 27,328.50 and 8,356.08

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Solution

The fourth proportional to 18,225.30, 27,328.50 and 8,356.08 is: 12,529.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,225.30 : 27,328.50 = 8,356.08 : x
  2. Step 2: Convert to fraction form
    18,225.30/27,328.50 = 8,356.08/x
  3. Step 3: Cross multiply
    18,225.30x = 27,328.50 × 8,356.08
  4. Step 4: Simplify right side
    18,225.30x = 228,359,132.28
  5. Step 5: Solve for x
    x = 228,359,132.28/18,225.30
  6. Step 6: Final answer
    x = 12,529.79

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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.