Home / 12,170.70-16,779.33-9,132.93

Finding the Fourth Proportional to 12,170.70, 16,779.33 and 9,132.93

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Solution

The fourth proportional to 12,170.70, 16,779.33 and 9,132.93 is: 12,591.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170.70 : 16,779.33 = 9,132.93 : x
  2. Step 2: Convert to fraction form
    12,170.70/16,779.33 = 9,132.93/x
  3. Step 3: Cross multiply
    12,170.70x = 16,779.33 × 9,132.93
  4. Step 4: Simplify right side
    12,170.70x = 153,244,446.34
  5. Step 5: Solve for x
    x = 153,244,446.34/12,170.70
  6. Step 6: Final answer
    x = 12,591.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.