Home / 11,860.60-17,771.70-7,470.20

Finding the Fourth Proportional to 11,860.60, 17,771.70 and 7,470.20

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Solution

The fourth proportional to 11,860.60, 17,771.70 and 7,470.20 is: 11,193.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,860.60 : 17,771.70 = 7,470.20 : x
  2. Step 2: Convert to fraction form
    11,860.60/17,771.70 = 7,470.20/x
  3. Step 3: Cross multiply
    11,860.60x = 17,771.70 × 7,470.20
  4. Step 4: Simplify right side
    11,860.60x = 132,758,153.34
  5. Step 5: Solve for x
    x = 132,758,153.34/11,860.60
  6. Step 6: Final answer
    x = 11,193.21

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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.