Home / 11,875.40-17,814.70-4,086.60

Finding the Fourth Proportional to 11,875.40, 17,814.70 and 4,086.60

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Solution

The fourth proportional to 11,875.40, 17,814.70 and 4,086.60 is: 6,130.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,875.40 : 17,814.70 = 4,086.60 : x
  2. Step 2: Convert to fraction form
    11,875.40/17,814.70 = 4,086.60/x
  3. Step 3: Cross multiply
    11,875.40x = 17,814.70 × 4,086.60
  4. Step 4: Simplify right side
    11,875.40x = 72,801,553.02
  5. Step 5: Solve for x
    x = 72,801,553.02/11,875.40
  6. Step 6: Final answer
    x = 6,130.45

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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.