Home / 10,829.20-16,218.20-7,347.60

Finding the Fourth Proportional to 10,829.20, 16,218.20 and 7,347.60

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Solution

The fourth proportional to 10,829.20, 16,218.20 and 7,347.60 is: 11,004.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,829.20 : 16,218.20 = 7,347.60 : x
  2. Step 2: Convert to fraction form
    10,829.20/16,218.20 = 7,347.60/x
  3. Step 3: Cross multiply
    10,829.20x = 16,218.20 × 7,347.60
  4. Step 4: Simplify right side
    10,829.20x = 119,164,846.32
  5. Step 5: Solve for x
    x = 119,164,846.32/10,829.20
  6. Step 6: Final answer
    x = 11,004.03

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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.