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Finding the Fourth Proportional to 8,681.58, 11,980.12 and 4,852.55

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Solution

The fourth proportional to 8,681.58, 11,980.12 and 4,852.55 is: 6,696.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.58 : 11,980.12 = 4,852.55 : x
  2. Step 2: Convert to fraction form
    8,681.58/11,980.12 = 4,852.55/x
  3. Step 3: Cross multiply
    8,681.58x = 11,980.12 × 4,852.55
  4. Step 4: Simplify right side
    8,681.58x = 58,134,131.31
  5. Step 5: Solve for x
    x = 58,134,131.31/8,681.58
  6. Step 6: Final answer
    x = 6,696.26

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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.