Home / 10,665.60-14,717.46-6,190.80

Finding the Fourth Proportional to 10,665.60, 14,717.46 and 6,190.80

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Solution

The fourth proportional to 10,665.60, 14,717.46 and 6,190.80 is: 8,542.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,665.60 : 14,717.46 = 6,190.80 : x
  2. Step 2: Convert to fraction form
    10,665.60/14,717.46 = 6,190.80/x
  3. Step 3: Cross multiply
    10,665.60x = 14,717.46 × 6,190.80
  4. Step 4: Simplify right side
    10,665.60x = 91,112,851.37
  5. Step 5: Solve for x
    x = 91,112,851.37/10,665.60
  6. Step 6: Final answer
    x = 8,542.68

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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.