Home / 8,991.66-13,485.20-3,445.34

Finding the Fourth Proportional to 8,991.66, 13,485.20 and 3,445.34

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Solution

The fourth proportional to 8,991.66, 13,485.20 and 3,445.34 is: 5,167.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.66 : 13,485.20 = 3,445.34 : x
  2. Step 2: Convert to fraction form
    8,991.66/13,485.20 = 3,445.34/x
  3. Step 3: Cross multiply
    8,991.66x = 13,485.20 × 3,445.34
  4. Step 4: Simplify right side
    8,991.66x = 46,461,098.97
  5. Step 5: Solve for x
    x = 46,461,098.97/8,991.66
  6. Step 6: Final answer
    x = 5,167.13

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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.