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Finding the Fourth Proportional to 8,757.66, 12,085.27 and 4,980.63

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Solution

The fourth proportional to 8,757.66, 12,085.27 and 4,980.63 is: 6,873.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.66 : 12,085.27 = 4,980.63 : x
  2. Step 2: Convert to fraction form
    8,757.66/12,085.27 = 4,980.63/x
  3. Step 3: Cross multiply
    8,757.66x = 12,085.27 × 4,980.63
  4. Step 4: Simplify right side
    8,757.66x = 60,192,258.32
  5. Step 5: Solve for x
    x = 60,192,258.32/8,757.66
  6. Step 6: Final answer
    x = 6,873.10

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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.