Home / 18,285.08-27,527.25-12,478.20

Finding the Fourth Proportional to 18,285.08, 27,527.25 and 12,478.20

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Solution

The fourth proportional to 18,285.08, 27,527.25 and 12,478.20 is: 18,785.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.08 : 27,527.25 = 12,478.20 : x
  2. Step 2: Convert to fraction form
    18,285.08/27,527.25 = 12,478.20/x
  3. Step 3: Cross multiply
    18,285.08x = 27,527.25 × 12,478.20
  4. Step 4: Simplify right side
    18,285.08x = 343,490,530.95
  5. Step 5: Solve for x
    x = 343,490,530.95/18,285.08
  6. Step 6: Final answer
    x = 18,785.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.