Home / 18,707.67-28,061.37-4,667.61

Finding the Fourth Proportional to 18,707.67, 28,061.37 and 4,667.61

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Solution

The fourth proportional to 18,707.67, 28,061.37 and 4,667.61 is: 7,001.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707.67 : 28,061.37 = 4,667.61 : x
  2. Step 2: Convert to fraction form
    18,707.67/28,061.37 = 4,667.61/x
  3. Step 3: Cross multiply
    18,707.67x = 28,061.37 × 4,667.61
  4. Step 4: Simplify right side
    18,707.67x = 130,979,531.23
  5. Step 5: Solve for x
    x = 130,979,531.23/18,707.67
  6. Step 6: Final answer
    x = 7,001.38

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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.