Home / 8,140.66-11,232.12-4,783.60

Finding the Fourth Proportional to 8,140.66, 11,232.12 and 4,783.60

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Solution

The fourth proportional to 8,140.66, 11,232.12 and 4,783.60 is: 6,600.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.66 : 11,232.12 = 4,783.60 : x
  2. Step 2: Convert to fraction form
    8,140.66/11,232.12 = 4,783.60/x
  3. Step 3: Cross multiply
    8,140.66x = 11,232.12 × 4,783.60
  4. Step 4: Simplify right side
    8,140.66x = 53,729,969.23
  5. Step 5: Solve for x
    x = 53,729,969.23/8,140.66
  6. Step 6: Final answer
    x = 6,600.20

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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.