Home / 13,795.90-20,693.85-8,266.30

Finding the Fourth Proportional to 13,795.90, 20,693.85 and 8,266.30

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Solution

The fourth proportional to 13,795.90, 20,693.85 and 8,266.30 is: 12,399.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,795.90 : 20,693.85 = 8,266.30 : x
  2. Step 2: Convert to fraction form
    13,795.90/20,693.85 = 8,266.30/x
  3. Step 3: Cross multiply
    13,795.90x = 20,693.85 × 8,266.30
  4. Step 4: Simplify right side
    13,795.90x = 171,061,572.26
  5. Step 5: Solve for x
    x = 171,061,572.26/13,795.90
  6. Step 6: Final answer
    x = 12,399.45

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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.