Home / 12,090.60-16,687.52-7,611.35

Finding the Fourth Proportional to 12,090.60, 16,687.52 and 7,611.35

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Solution

The fourth proportional to 12,090.60, 16,687.52 and 7,611.35 is: 10,505.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.60 : 16,687.52 = 7,611.35 : x
  2. Step 2: Convert to fraction form
    12,090.60/16,687.52 = 7,611.35/x
  3. Step 3: Cross multiply
    12,090.60x = 16,687.52 × 7,611.35
  4. Step 4: Simplify right side
    12,090.60x = 127,014,433.86
  5. Step 5: Solve for x
    x = 127,014,433.86/12,090.60
  6. Step 6: Final answer
    x = 10,505.22

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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.