Home / 11,829.56-16,319.16-7,800.60

Finding the Fourth Proportional to 11,829.56, 16,319.16 and 7,800.60

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Solution

The fourth proportional to 11,829.56, 16,319.16 and 7,800.60 is: 10,761.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,829.56 : 16,319.16 = 7,800.60 : x
  2. Step 2: Convert to fraction form
    11,829.56/16,319.16 = 7,800.60/x
  3. Step 3: Cross multiply
    11,829.56x = 16,319.16 × 7,800.60
  4. Step 4: Simplify right side
    11,829.56x = 127,299,239.50
  5. Step 5: Solve for x
    x = 127,299,239.50/11,829.56
  6. Step 6: Final answer
    x = 10,761.11

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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.