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Finding the Fourth Proportional to 8,740.81, 13,100.81 and 5,035.37

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Solution

The fourth proportional to 8,740.81, 13,100.81 and 5,035.37 is: 7,547.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,740.81 : 13,100.81 = 5,035.37 : x
  2. Step 2: Convert to fraction form
    8,740.81/13,100.81 = 5,035.37/x
  3. Step 3: Cross multiply
    8,740.81x = 13,100.81 × 5,035.37
  4. Step 4: Simplify right side
    8,740.81x = 65,967,334.97
  5. Step 5: Solve for x
    x = 65,967,334.97/8,740.81
  6. Step 6: Final answer
    x = 7,547.05

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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.