Home / 18,813.05-28,223.82-9,457.55

Finding the Fourth Proportional to 18,813.05, 28,223.82 and 9,457.55

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Solution

The fourth proportional to 18,813.05, 28,223.82 and 9,457.55 is: 14,188.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,813.05 : 28,223.82 = 9,457.55 : x
  2. Step 2: Convert to fraction form
    18,813.05/28,223.82 = 9,457.55/x
  3. Step 3: Cross multiply
    18,813.05x = 28,223.82 × 9,457.55
  4. Step 4: Simplify right side
    18,813.05x = 266,928,188.84
  5. Step 5: Solve for x
    x = 266,928,188.84/18,813.05
  6. Step 6: Final answer
    x = 14,188.46

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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.