Home / 18,864.81-28,292.15-8,984.43

Finding the Fourth Proportional to 18,864.81, 28,292.15 and 8,984.43

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Solution

The fourth proportional to 18,864.81, 28,292.15 and 8,984.43 is: 13,474.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,864.81 : 28,292.15 = 8,984.43 : x
  2. Step 2: Convert to fraction form
    18,864.81/28,292.15 = 8,984.43/x
  3. Step 3: Cross multiply
    18,864.81x = 28,292.15 × 8,984.43
  4. Step 4: Simplify right side
    18,864.81x = 254,188,863.69
  5. Step 5: Solve for x
    x = 254,188,863.69/18,864.81
  6. Step 6: Final answer
    x = 13,474.23

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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.