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Finding the Fourth Proportional to 8,766.81, 13,159.40 and 7,458.39

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Solution

The fourth proportional to 8,766.81, 13,159.40 and 7,458.39 is: 11,195.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,766.81 : 13,159.40 = 7,458.39 : x
  2. Step 2: Convert to fraction form
    8,766.81/13,159.40 = 7,458.39/x
  3. Step 3: Cross multiply
    8,766.81x = 13,159.40 × 7,458.39
  4. Step 4: Simplify right side
    8,766.81x = 98,147,900.07
  5. Step 5: Solve for x
    x = 98,147,900.07/8,766.81
  6. Step 6: Final answer
    x = 11,195.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.