Home / 8,955.80-13,431.66-3,407.16

Finding the Fourth Proportional to 8,955.80, 13,431.66 and 3,407.16

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Solution

The fourth proportional to 8,955.80, 13,431.66 and 3,407.16 is: 5,109.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,955.80 : 13,431.66 = 3,407.16 : x
  2. Step 2: Convert to fraction form
    8,955.80/13,431.66 = 3,407.16/x
  3. Step 3: Cross multiply
    8,955.80x = 13,431.66 × 3,407.16
  4. Step 4: Simplify right side
    8,955.80x = 45,763,814.69
  5. Step 5: Solve for x
    x = 45,763,814.69/8,955.80
  6. Step 6: Final answer
    x = 5,109.96

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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.