Home / 13,554.42-20,331.65-8,903.80

Finding the Fourth Proportional to 13,554.42, 20,331.65 and 8,903.80

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Solution

The fourth proportional to 13,554.42, 20,331.65 and 8,903.80 is: 13,355.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554.42 : 20,331.65 = 8,903.80 : x
  2. Step 2: Convert to fraction form
    13,554.42/20,331.65 = 8,903.80/x
  3. Step 3: Cross multiply
    13,554.42x = 20,331.65 × 8,903.80
  4. Step 4: Simplify right side
    13,554.42x = 181,028,945.27
  5. Step 5: Solve for x
    x = 181,028,945.27/13,554.42
  6. Step 6: Final answer
    x = 13,355.71

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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.