Home / 18,659.07-27,988.41-4,808.07

Finding the Fourth Proportional to 18,659.07, 27,988.41 and 4,808.07

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Solution

The fourth proportional to 18,659.07, 27,988.41 and 4,808.07 is: 7,212.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,659.07 : 27,988.41 = 4,808.07 : x
  2. Step 2: Convert to fraction form
    18,659.07/27,988.41 = 4,808.07/x
  3. Step 3: Cross multiply
    18,659.07x = 27,988.41 × 4,808.07
  4. Step 4: Simplify right side
    18,659.07x = 134,570,234.47
  5. Step 5: Solve for x
    x = 134,570,234.47/18,659.07
  6. Step 6: Final answer
    x = 7,212.05

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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.