Home / 8,782.77-12,120.47-4,804.12

Finding the Fourth Proportional to 8,782.77, 12,120.47 and 4,804.12

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Solution

The fourth proportional to 8,782.77, 12,120.47 and 4,804.12 is: 6,629.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,782.77 : 12,120.47 = 4,804.12 : x
  2. Step 2: Convert to fraction form
    8,782.77/12,120.47 = 4,804.12/x
  3. Step 3: Cross multiply
    8,782.77x = 12,120.47 × 4,804.12
  4. Step 4: Simplify right side
    8,782.77x = 58,228,192.34
  5. Step 5: Solve for x
    x = 58,228,192.34/8,782.77
  6. Step 6: Final answer
    x = 6,629.82

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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.