Home / 13,697.13-20,554.20-8,770.31

Finding the Fourth Proportional to 13,697.13, 20,554.20 and 8,770.31

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Solution

The fourth proportional to 13,697.13, 20,554.20 and 8,770.31 is: 13,160.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,697.13 : 20,554.20 = 8,770.31 : x
  2. Step 2: Convert to fraction form
    13,697.13/20,554.20 = 8,770.31/x
  3. Step 3: Cross multiply
    13,697.13x = 20,554.20 × 8,770.31
  4. Step 4: Simplify right side
    13,697.13x = 180,266,603.03
  5. Step 5: Solve for x
    x = 180,266,603.03/13,697.13
  6. Step 6: Final answer
    x = 13,160.90

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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.