Home / 18,520.60-27,782.34-5,373.16

Finding the Fourth Proportional to 18,520.60, 27,782.34 and 5,373.16

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Solution

The fourth proportional to 18,520.60, 27,782.34 and 5,373.16 is: 8,060.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520.60 : 27,782.34 = 5,373.16 : x
  2. Step 2: Convert to fraction form
    18,520.60/27,782.34 = 5,373.16/x
  3. Step 3: Cross multiply
    18,520.60x = 27,782.34 × 5,373.16
  4. Step 4: Simplify right side
    18,520.60x = 149,278,957.99
  5. Step 5: Solve for x
    x = 149,278,957.99/18,520.60
  6. Step 6: Final answer
    x = 8,060.16

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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.