Home / 18,817.40-28,214.94-12,584.36

Finding the Fourth Proportional to 18,817.40, 28,214.94 and 12,584.36

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Solution

The fourth proportional to 18,817.40, 28,214.94 and 12,584.36 is: 18,869.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,817.40 : 28,214.94 = 12,584.36 : x
  2. Step 2: Convert to fraction form
    18,817.40/28,214.94 = 12,584.36/x
  3. Step 3: Cross multiply
    18,817.40x = 28,214.94 × 12,584.36
  4. Step 4: Simplify right side
    18,817.40x = 355,066,962.34
  5. Step 5: Solve for x
    x = 355,066,962.34/18,817.40
  6. Step 6: Final answer
    x = 18,869.08

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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.