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Finding the Fourth Proportional to 8,940.65, 13,350.77 and 7,300.40

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Solution

The fourth proportional to 8,940.65, 13,350.77 and 7,300.40 is: 10,901.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.65 : 13,350.77 = 7,300.40 : x
  2. Step 2: Convert to fraction form
    8,940.65/13,350.77 = 7,300.40/x
  3. Step 3: Cross multiply
    8,940.65x = 13,350.77 × 7,300.40
  4. Step 4: Simplify right side
    8,940.65x = 97,465,858.05
  5. Step 5: Solve for x
    x = 97,465,858.05/8,940.65
  6. Step 6: Final answer
    x = 10,901.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.