Home / 8,783.18-12,120.84-4,804.28

Finding the Fourth Proportional to 8,783.18, 12,120.84 and 4,804.28

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Solution

The fourth proportional to 8,783.18, 12,120.84 and 4,804.28 is: 6,629.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,783.18 : 12,120.84 = 4,804.28 : x
  2. Step 2: Convert to fraction form
    8,783.18/12,120.84 = 4,804.28/x
  3. Step 3: Cross multiply
    8,783.18x = 12,120.84 × 4,804.28
  4. Step 4: Simplify right side
    8,783.18x = 58,231,909.20
  5. Step 5: Solve for x
    x = 58,231,909.20/8,783.18
  6. Step 6: Final answer
    x = 6,629.93

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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.