Home / 10,582.40-14,629.20-8,076.80

Finding the Fourth Proportional to 10,582.40, 14,629.20 and 8,076.80

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Solution

The fourth proportional to 10,582.40, 14,629.20 and 8,076.80 is: 11,165.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,582.40 : 14,629.20 = 8,076.80 : x
  2. Step 2: Convert to fraction form
    10,582.40/14,629.20 = 8,076.80/x
  3. Step 3: Cross multiply
    10,582.40x = 14,629.20 × 8,076.80
  4. Step 4: Simplify right side
    10,582.40x = 118,157,122.56
  5. Step 5: Solve for x
    x = 118,157,122.56/10,582.40
  6. Step 6: Final answer
    x = 11,165.44

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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.