Home / 18,700.75-28,047.07-5,553.23

Finding the Fourth Proportional to 18,700.75, 28,047.07 and 5,553.23

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Solution

The fourth proportional to 18,700.75, 28,047.07 and 5,553.23 is: 8,328.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,700.75 : 28,047.07 = 5,553.23 : x
  2. Step 2: Convert to fraction form
    18,700.75/28,047.07 = 5,553.23/x
  3. Step 3: Cross multiply
    18,700.75x = 28,047.07 × 5,553.23
  4. Step 4: Simplify right side
    18,700.75x = 155,751,886.77
  5. Step 5: Solve for x
    x = 155,751,886.77/18,700.75
  6. Step 6: Final answer
    x = 8,328.64

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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.